Catalyst A.I. problems on HD3870x2

[samsonite789]

I'm running a 3870x2 on Vista 64-bit and I'm having trouble with the Catalyst A.I. option. For just about every game I have except Bioshock, when I have Catalyst A.I. turned on in CCC, the game runs fine except for blatant graphical glitches (significant tearing coming from models and objects). Obviously this is annoying, so I turn it off for these games, but this disables one of the GPUs on the card, thus giving me 50% of what I paid for. Performance is fine, but I can't turn the graphics up all the way like I paid $400 dollars to be able to. How can I achieve the performance that Catalyst A.I. gives me without encountering these annoying graphics glitches? My drivers are updated to 8.7 btw. Any help would be much appreciated.

[DMB2000uk]

Have you tried enabling V-Sync?

This might not work as it is a crossfire setup, but normally tearing is solved by locking the framerate to the refresh rate of the monitor.

Dan

[samsonite789]

Sorry, maybe tearing is not the right term. It's not VSync. What I see are lots of jagged, opaque lines streaking from various objects on the screen. Maybe artifacts is what I'm looking for?

[martini161]

no, you were right the first time thats tearing

[samsonite789]

Any idea what's causing this?

[martini161]

have you tired enabling vsync?

[samsonite789]

Yes, it's always on in any game I play through the application settings. I hate having it off.