playback related issues caused by ATI Drivers
Thanks to the efforts our community memeber revs put into finding out what caused the playback issues he suffered from, we can inform you that ATI has introduced a couple of issues in their Catalyst 11.2 driver.
So if you are suffering from problems as described by revs, then please downgrade your ATI drivers to 11.1, which have been reported to be working just fine.
If you are running the 11.2 driver and not notice any problems, then there is no need to downgrade.