iMac screen: the light colors are gone to white
iMac screen: the light colors are gone to white. Not only in my windows, also in all browsers, etc. Must be a software problem, if I start up from an external disk it's OK. Possible a bad file in my User library but which one?? I did fresh install Snow Leopard, then it was OK again, but when I started some applications it went wrong again. Has anyone ever seen this?? I went to the Apple store and they could not help :-(
iMac, Mac OS X (10.6.8)