I have two different ATI cards installed in one system, each with their own 22" HP LCD. One is an ATI FireGL V5600 for my CAD applications and the other is an X1900XT for Left4Dead. When I ran Windows Update after I installed Windows 7, it immediately downloaded an updated driver for the V5600 (8.623, I think) but when it installed it, it disabled the X1900XT. I went to the Device Manager, uninstalled the X1900XT, then Scanned for Hardware Changes, it finds the X1900XT, installs the driver and it works again. Unfortunately, it also reverts the driver for the V5600 back to 22.214.171.124 which isn't even a valid driver for the V5600 as seen on this page. I'm not sure why I can't have independent drivers for each card. I know for a fact that this is supported in XP as I have my system dual booting with XP and it work perfectly there (see photo 1 and photo 2 it's hard to tell, but both of those screenshots are from XP with each card having independent drivers). The downside is that my CAD apps don't recognize the V5600 with driver 126.96.36.199 as the workstation card it is, and my graphics are severely crippled in those apps. I would like to report this to Microsoft, but unlike in RC1 there is no way to report a bug. Thanks in advance for any help.