Most Gui elements do not appear on Mac Os WebPlayer

Hello,

I have a gui menu that does not appear on Mac Os WebPlayer although when i run the build on Windows it appears perfectly, same in unity editor.
Basically i have a few Gui.BeginGroup - Gui.EndGroup with some DrawTexture and Gui Buttons.
What is the difference between them?
I create the build on a windows 7 x64 system.
here is my code
void OnGUI ()
{
//drawer gui group
GUI.BeginGroup (new Rect (drawerLeft, menuBarHeight, drawerWidth, Screen.height - menuBarHeight));

				//background texture
				GUI.DrawTexture (new Rect (0, 0, drawerWidth - btnDrawer.width + btnDrawerPadding, drawerTextBckgrndHeight - menuBarHeight), drawerTextBckgrnd);
				GUI.DrawTexture (new Rect (0, drawerTextBckgrndHeight - menuBarHeight, drawerWidth - btnDrawer.width + btnDrawerPadding,
			                         			drawerVideoBckgrndHeight), drawerVideoBckgrnd);
				//movie texture
				GUI.DrawTexture (movieRect, mCurrentMovie);
					
				//text display
				GUI.Label (new Rect (titleMarginLeft, titleMarginTop, drawerWidth - btnDrawer.width - titleMarginLeft * 3, 
			                     titleMarginTop), drawerTitle, drawerTitleStyle);
				GUI.Label (new Rect (titleMarginLeft, titleMarginTop * 4, drawerWidth - btnDrawer.width - titleMarginLeft * 3, 
			                     drawerTextBckgrndHeight - menuBarHeight - titleMarginTop * 4), drawerText, drawerTextStyle);
				//drawer button
				if (GUI.Button (new Rect (drawerWidth - btnDrawer.width, Screen.height / 2 - btnDrawer.height / 2, 
			                        btnDrawer.width, btnDrawer.height), btnDrawer, btnDrawerStyle)) {
						drawerLerpTimerStart = 0;
						if (drawerShouldLerp) {
								drawerShouldLerp = false;
								drawerShouldLerpBack = true;
						} else if (drawerShouldLerpBack) {
								drawerShouldLerp = true;
								drawerShouldLerpBack = false;
								mCurrentMovie.Stop ();
								shouldInitVideo = true;
								videoInitStartTime = Time.time;
						} else if (!drawerShouldLerpBack && !drawerShouldLerp) {
								drawerShouldLerp = true;
								drawerShouldLerpBack = false;
								mCurrentMovie.Stop ();
								shouldInitVideo = true;
								videoInitStartTime = Time.time;
						}
				}

				GUI.EndGroup ();

				// gui menu bar
				currentGuiElementLeft = 0;
				GUI.DrawTexture (new Rect (0.0f, 0.0f, Screen.width, menuBarHeight + menuBackgroundFadeHeight), menuBckgrnd);
				GUI.BeginGroup (new Rect (0.0f, 0.0f, Screen.width, menuBarHeight + menuBackgroundFadeHeight - 1.0f));
				//background texture
				GUI.DrawTexture (new Rect (0.0f, 0.0f, Screen.width, menuBarHeight + menuBackgroundFadeHeight), menuBckgrnd);
				GUI.Label (new Rect (menuLogoLeft, menuLogoTop, menuLogoWidth, menuLogoHeight), new GUIContent ("CitoPress", menuLogo), logoStyle);
				//help button
				currentGuiElementLeft = Screen.width - btnMenuWidth;
				if (GUI.Button (new Rect (currentGuiElementLeft, 0, btnMenuWidth, btnMenuHeight), "", btnMenuHelpStyle)) {
					shouldRenderHelp=true;
				}
				currentGuiElementLeft -= menuDivider.width;
				GUI.DrawTexture (new Rect (currentGuiElementLeft, 0, menuDivider.width, btnMenuHeight), menuDivider);

				//zoom button
				currentGuiElementLeft -= btnMenuWidth;
				if (GUI.Button (new Rect (currentGuiElementLeft, 0, btnMenuWidth, btnMenuHeight), "", btnMenuZoomStyle)) {
						if (shouldShowBulletZoomBar) {
								shouldShowBulletZoomBar = false;
								btnMenuZoomStyle.normal.background = (Texture2D)Resources.Load ("meta/toggle_zoom"); 
						} else {
								shouldShowBulletZoomBar = true;
								btnMenuZoomStyle.normal.background = (Texture2D)Resources.Load ("meta/toggle_zoom_pressed"); 
						}
				}
				currentGuiElementLeft -= menuDivider.width;
				GUI.DrawTexture (new Rect (currentGuiElementLeft, 0, menuDivider.width, btnMenuHeight), menuDivider);
				//language button
				currentGuiElementLeft -= btnMenuWidth;
				if (GUI.Button (new Rect (currentGuiElementLeft, 0, btnMenuWidth, btnMenuHeight), "", btnMenuLanguageStyle)) {
						shouldRenderLangSelection = true;
				}
				currentGuiElementLeft -= menuDivider.width;
				GUI.DrawTexture (new Rect (currentGuiElementLeft, 0, menuDivider.width, btnMenuHeight), menuDivider);

				// enable/disable hotspot texts
				currentGuiElementLeft -= btnMenuWidth * 2;
				if (GUI.Button (new Rect (currentGuiElementLeft, 0, btnMenuWidth * 2, btnMenuHeight), "", btnMenuHotSpotsTextStyle)) {
						textLerpTimerStart = 0;
						if (shouldShowBulletTexts) {
								shouldShowBulletTexts = false;
								btnMenuHotSpotsTextStyle.normal.background = (Texture2D)Resources.Load ("meta/toggle_text_off"); 
						} else {
								shouldShowBulletTexts = true;
								btnMenuHotSpotsTextStyle.normal.background = (Texture2D)Resources.Load ("meta/toggle_text_on"); 
						}
				}
				currentGuiElementLeft -= menuDivider.width;
				GUI.DrawTexture (new Rect (currentGuiElementLeft, 0, menuDivider.width, btnMenuHeight), menuDivider);
				// enable/disable hotspots
				currentGuiElementLeft -= btnMenuWidth;
				if (GUI.Button (new Rect (currentGuiElementLeft, 0, btnMenuWidth, btnMenuHeight), "", btnMenuHotSpotsStyle)) {
						if (shouldShowBullets) {
								shouldShowBullets = false;
								for (int i=0; i<bullets.Length; i++) {
										bullets *.SetActive (false);*
  •  						}*
    
  •  				} else {*
    
  •  						shouldShowBullets = true;*
    
  •  						for (int i=0; i<bullets.Length; i++) {*
    

_ bullets .SetActive (true);_
* }*

* }*
* }*
* currentGuiElementLeft -= menuDivider.width;*
* GUI.DrawTexture (new Rect (currentGuiElementLeft, 0, menuDivider.width, btnMenuHeight), menuDivider);*
* //reset button*
* currentGuiElementLeft -= btnMenuWidth;*
* if (GUI.Button (new Rect (currentGuiElementLeft, 0, btnMenuWidth, btnMenuHeight), “”, btnMenuResetStyle)) {*
* Application.LoadLevel (Application.loadedLevel);*
* }*
* GUI.EndGroup ();*
* //render zoom scrollbar*
* if (shouldShowBulletZoomBar) {*
* Camera.main.fieldOfView = GUI.VerticalSlider (new Rect (Screen.width - zoomBarRightMargin,*
* zoomBarTopMargin, zoomBarWidth, Screen.height - zoomBarTopMargin),*
* Camera.main.fieldOfView, 120.0f, 15.0f, zoomBarSliderStyle, zoomBarThumbStyle);*
* }*

* //language selection GUI*
* if (shouldRenderLangSelection) {*
* GUI.BeginGroup (new Rect (0.0f, 0.0f, Screen.width, Screen.height), helpBackground);*
_ if (GUI.Button (new Rect (Screen.width * 0.5f - helpEnglish.width * 2 - helpLanguageSpacing * 1.5f,
Screen.height * 0.5f - helpEnglish.height * 0.5f, helpEnglish.width, helpEnglish.height), new GUIContent (“English”, helpEnglish), helpLanguageStyle)) {
* shouldRenderLangSelection = false;*
* mLangStrings = new MultiLanguageScript (“English”);*
* reloadTexts ();*
* }*
if (GUI.Button (new Rect (Screen.width * 0.5f - helpEnglish.width - helpLanguageSpacing * 0.5f,
Screen.height * 0.5f - helpEnglish.height * 0.5f, helpEnglish.width, helpEnglish.height), new GUIContent (“Deutsch”, helpGerman), helpLanguageStyle)) {
* shouldRenderLangSelection = false;*
* mLangStrings = new MultiLanguageScript (“German”);*
* reloadTexts (); *
* }*
if (GUI.Button (new Rect (Screen.width * 0.5f + helpLanguageSpacing * 0.5f,
Screen.height * 0.5f - helpEnglish.height * 0.5f, helpEnglish.width, helpEnglish.height), new GUIContent (“Francais”, helpFrench), helpLanguageStyle)) {
* shouldRenderLangSelection = false;*
* mLangStrings = new MultiLanguageScript (“French”);*
* reloadTexts ();*
* }*
if (GUI.Button (new Rect (Screen.width * 0.5f + helpEnglish.width + helpLanguageSpacing * 1.5f,
Screen.height * 0.5f - helpEnglish.height * 0.5f, helpEnglish.width, helpEnglish.height), new GUIContent (“Chinese”, helpChinese), helpLanguageStyle)) {_

* shouldRenderLangSelection = false;*
* mLangStrings = new MultiLanguageScript (“Japanese”);*
* reloadTexts ();*
* }*
* GUI.EndGroup ();*
* }*

* //drawer open/close animation*
* if (drawerShouldLerp) {*
* drawerLerpTimer = (drawerLerpTimerStart += Time.deltaTime) / 6;*
* drawerLeft = Mathf.SmoothStep (drawerLeft, 0, drawerLerpTimer);*
* } else if (drawerShouldLerpBack) {*
* drawerLerpTimer = (drawerLerpTimerStart += Time.deltaTime) / 6;*
* drawerLeft = Mathf.SmoothStep (drawerLeft, - drawerWidth + btnDrawer.width, drawerLerpTimer);*
* }*

* //show Help*
* if (shouldRenderHelp) {*
* GUI.DrawTexture(new Rect(0, 0, Screen.width, Screen.height), menuHelp);*
* }*

* //fade in /out bullet text*
* if (shouldShowBulletTexts) {*
* textLerpTimer = (textLerpTimerStart += Time.deltaTime) / 3;*
* for (int i=0; i<bullets.Length; i++) {*
_ Color tempColor = bullets .guiText.material.color;
* tempColor.a = Mathf.Lerp (0.0f, 1.0f, textLerpTimer);
bullets .guiText.material.color = tempColor;
tempColor = bulletBacks .guiTexture.color;
tempColor.a = Mathf.Lerp (0.0f, 1.0f, textLerpTimer);
bulletBacks .guiTexture.color = tempColor;
}*_

* } else {*
* textLerpTimer = (textLerpTimerStart += Time.deltaTime) / 3;*
* for (int i=0; i<bullets.Length; i++) {*
_ // Fade.use.Alpha(bullets*, 1.0f, 0.0f, 1.0f);
Color tempColor = bullets .guiText.material.color;
tempColor.a = Mathf.Lerp (1.0f, 0.0f, textLerpTimer);*

bullets .guiText.material.color = tempColor;_

_ tempColor = bulletBacks .guiTexture.color;
* tempColor.a = Mathf.Lerp (1.0f, 0.0f, textLerpTimer);
bulletBacks .guiTexture.color = tempColor;
}
}
}*

Please note that the “//Drawer button” appears correctly on Mac Os too, and the “//text display” appears in the top left corner (although at launch they should be outside the screen in the left)
I have looked everywhere on the forum but i couldn’t find a solution or a similar issue with an answer.
Any advice is much appreciated_

Finally Fixed it, it seems to be part unity issue with code run order.
On windows apparently Screen canvas is initialized first so you can declare global variables in your script like: "private float drawerWidth = Screen.width *0.05f; ". On Mac OS apparently they initialize my variables before initializing the Screen Canvas so Screen.width is zero when assigning my variables. Anyway hope this helps someone else.
PS: the solution was to declare the variables globally and assign their values in onStart()