#1: I'm not sure just how bad nVidia's drivers are right now (I don't have a machine on hand with an nVidia card to test the new drivers), but I just purchased an MSI 2600xt 512MB DDR3 card (they finally are available), and unless I have a faulty piece of gear, I'm not too impressed yet. First, I have dual 1600x1200 displays in a portrait-portrait orientation... it doesn't like that. If I reboot, the second display just goes to sleep and never wakes up, even if I try to force the driver to detect the display. Get this... the only way I can get the second display working again is if I rotate the primary display back to standard rotation. Then I have to fiddle with it all (head sideways... although I'm getting better at the move-the-mouse-right, it-goes-up orientation thing) to get it working again. Granted, creating a profile makes this easier... but this is something I could not foist on my users. Not that they have to reboot often, but still, that's pretty lame.
Second, I'm encountering display "corruption" on the secondary display. It's pretty insignificant, but disturbing nonetheless. After getting the secondary display working (upon reboot), I get a flickering "black box" across about 2/3rds of the secondary display when performing any window operations (resizing, moving, minimizing, etc.). This is quite annoying, actually, but it soon subsides and becomes a thin black line (maybe 2 pixels?) spanning nearly the entire vertical length of the display (in portrait orientation). The weird thing is that this disappears when running some graphically intense software--I was stress testing it (using a full-screen HDR demo) last night to see how hot it gets as a passively-cooled card... quite hot (86-88 degrees C steady, but never higher than that for about 90 minutes; ~50 degrees C at idle, which I've read is normal for a modern GPU)! Though I should say I didn't experience any lockups. (Anyone have any suggestions for a max temp under load on a passively-cooled card?) At any rate, during the stress test, the "corruption" goes away. It immediately resumes after stopping (or pausing) the test. It's a shame, because these 2600xt's seem like a sweetheart of a card for decent-performing, low-wattage card (no 6-pin connector required).
Interestingly, it may be that Intel has strongest drivers right now. We've had about a dozen machines with only the integrated G965 graphics option, and they--surprisingly--drive dual 1600x1200 displays (in portrait/portrait layout... same as above, Aero and all) with no real issues at all. I have had one "go goofy" on the primary display on me one day with crazy colors and a scrambled display, but that was only on one machine, once, in about three months.
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