I am working in PScs5 on a EIZO color edge monitor. When I open my image photoshop displays all of the colors fine. When I change to full frame viewing, the image color becomes very muted and washed out. After this happens if I put it back to normal screen the colors stay muted. I can save the image, close it, and when it reopens the color are back to normal, like nothing happened. What is happening? I am very frustrated. I have calibrated my monitor twice and nothing has changed. I have never come across this before and I am totally stumped.
There has been some posted issues on this problem for CS5 at this link: http://feedback.photoshop.com/photoshop_family/topics/colour_glitches_when_switching_to_fullscreen_mode_in_photoshop
An easy test is to turn off OpenGL Drawing in Preferences and see if the problem goes away. Hope this helps.