Using the Linux version under Windows

[Wyrd]

If you're using the "radeon" (open-source) driver, try the official closed-source driver from ATI (fglrx). Also be sure to turn off Compiz before you start the game.

The various Linux drivers for ATI cards aren't very good, so if you must buy the Windows version of the collection instead, it's 50% off this week on Steam: http://store.steampowered.com/sub/1451/