I have an Aptiva 2162 S3C. I no longer have any white - it's like a yellow film has been slipped into my monitor. I ran the diagnostics - everything done automatically "passed", of course the manual color test failed but there were no instructions or explanations. One thing I noticed on the diagnostics it said Ihad ATI Mach 64, but on my display, settings, it says ATI 3D Rage II direct draw. It also says ATI MACH 64 isn't compatible with this computer?? I tried to get into the IBM discussion group, but it won't take my user id and password, says something about cookies (I've written them). The most recent thing I did was to load Explorer 4.0. Could that have done something? I would appreciate any help. Thanks Mary