I've got a Win7 boot drive on my Mac Pro. I've been using it for years with no problems. Recently after some updates (both Windows and ATI), I get a flickering on the bottom half of one of my two screens. If I go into Catalyst settings and fiddle around, I can make it start happening on the other monitor. So I'm going to assume it's not a monitor or cable issue. Here's an example:
Nope, I already had those checked in Catalyst. I'm wondering if it's interference from another program. As the system is still booting, It doesn't occur. But after everything is loaded, that's when it starts up.
You can use msconfig to stop programs from starting with the system, but do not shut off anything essential.
It is a bit trial and error, but should cover most 3rd party apps by stopping them. With some testing you can find what is causing the problem. There may be a popup about some kind of fixit, that is not what i sent you for.
I hope you can fix it. Try setting the catalyst settings to default and see if that works. I had a prob with my old vid card that looked just like that in Oblivion before my pc would freeze. It ended up being bad ram and only happened when I stressed the card. If you can't find the prob in software then see if the card does anything weird in osx when you stress it.
Well, it seems it was Catalyst causing the problem. I turned everything off in msconfig, and on reboot everything was fine. On a hunch I restarted Catalyst, and the problem came back. It's been off for a couple hours now, and now flicker (yet). Thanks Nukemaster.
Any time(still a shame you are now without a control panel). I just installed the latest drivers for my ATI card thinking it may be that, So far its good, but i was like 5 or more driver revisions behind. Fingers crossed.
I would contact ATI to let them know so they can fix it in the next release.