I cant get Vsync to work in 15.7. Used to work just fine with previous drivers but the performance is much better on 15.7. I get screen tearing no matter what. Anybody else with the same problem? I'm on w7 64bit. Of course it works just fine with crossfire off but at my resolution that's not an option. EDIT: found the problem is related to my resolution and aspect ratio. nobody bothers doing testing for 16:10 these days.
This probably won't help but do you have Aero disabled on your desktop? That or having Disable Desktop Composition checked in the properties -> compatibility settings can cause vsync to stop working.
I just tried it but no luck. It's a weird problem and definitely driver related. With Vsynch off I get really bad screen tearing, when I turn it on the tearing is less but still there. I tried playing with the max buffered frames command but it makes no difference.