UI Elements a lot brighter on some computers?

I have some GUI elements (using the old GUI system) and they look great on my computer, but on others they turn out brighter.

My Computer:

Their Computer:

I am using linear color space. The textures are being imported as legacy GUI. I also tried doing advanced and bypassing sRGB.

Really need help with this. Thanks!

Bump!

Is that unity5? Pc, Mac, Webgl?
First screenshot is from editor?

1st pic is editor, but looks same in web player. Second picture is web player on friend’s computer. Unity 5… but this issue happens on unity 4 too. Also unity 5 didn’t make any changes to this GUI System. This is the legacy gui system too.

Bump. Now I’m having the issue on my own computer, IN THE EDITOR! Please help someone.