Is changing the color of GUIText unavailable in the Free Edition?

Hi,

I am using the free edition of Unity 2.6.

I have created a GUIText game object.

I have also created a new yellow font material, which is a GUI/Text Shader.

When I try to change the GUIText.Material from 'None' to my yellow font in the Inspector, the text is blocked-out and unreadable.

Is the ability to change the font color only available to Unity Pro users?

http://unity3d.com/unity/licenses.html

If something was going to be available in Pro and not Free, it would simply not work, rather than generating wrong results. You just need to use the proper font.