Looks like you may have V-Sync disabled under D3D, I'd check with Riva Tuner ( selecting defaults should sort it)
I had a similar issue with my FX5600, which was caused by the above, however, use a program like detonator destroyer to remove absolutely all traces of your old drivers, then install the Asus optimised drivers from the CD that should have come with your card, I get similar corruption with Battlefield 1942 unless I use the optimised (52.16) Asus drivers, "regular" 52.16's cause my machine to crash! >:( ::)
Hope this helps,
Paul.
P.S.
You may have a stray piece of pasta stuck in your cards fan..... :P ;)

Posting drivel here since Jan 31st, 2002. - That long!
"He who laughs last, thinks slowest."