Hi,
Could you run my glitchanalyzer to see what's happening? I've switched to a 64bit system and apparently the new drivers are giving me issues with my usual settings, so this trick doesn't seem to be universal. My problem right now is audio out of sync. I'm going to run my glitchanalyzer myself to see what's happening, I might have to update it with an audio sync test signal as well.
https://forum.doom9.org/showthread.php?p=1463261
http://forum.doom9.org/showthread.php?p=1470667