I posted earlier...
Just want to say that if I played Battlefield 1942 with either my 5800 Ultra or 5600 Ultra the game was unplayable with no matter what settings I used. I play my games in 120hz and the way I fixed all problems with the cards was to simply turn off SYSTEM RESTORE in Windows XP. Once I disabled this all my games worked fine... Yes everyone is correct also that with an older card like a 4600TI fixes the problem also but it has something to do with SYSTEM RESTORE and these newer cards... All you can do is test it, you can always turn SYSTEM RESTORE back on if it doesn't work... But it worked for me like a charm and of course with my new 600 Watt Power Supply...
(2) Asus A7N8X Deluxe 1.0 and 2.0 Boards
Geforce FX 5800 Ultra and 5600 Ultra
AMD Athlon XP 2700+
1.5 Gig Corsair XMS RAM Dual Channel
(2) Plextor CDRW Drives
(2) 80 Gig Seagate SATA Hard Drives