X-RayXI
I was using 10.7 but couldn't get the ATi icon back on the sys-tray (by the clock) and installed 10.7a version (so called "Preview" and always newer rather then the public version)
It is working greaT though
http://support.amd.com/us/kbarticles/Pages/ATICat107aBetaDriver.aspx
ATI Catalyst™ 10.7a beta driver features:
Starcraft II: Support for Anti-Aliasing through the ATI Catalyst Control Center when using a Windows® 7, Windows Vista® or Windows XP based system with an:
ATI Radeon™ HD 5xxx series graphics card or ATI Radeon Mobility equivalent series of products
ATI Radeon HD 4xxx series graphics card or ATI Radeon Mobility equivalent series of products
ATI Radeon HD 3xxx series graphics card or ATI Radeon Mobility equivalent series of products
ATI Radeon HD 2xxx series graphics card or ATI Radeon Mobility equivalent series of products
Improved performance for Quad ATI CrossFireX™ for Eyefinity™ supported configurations
I had this issue a few mins ago after installing the new driver...
a complete deinstall and running driver cleaner pro to delete all ATI registry thingys fixed it
just FYI Ray