I have installed this card, ATI HD4670, on two different machines running Linux Mint with the same results. Very slow opening windows, WoW takes forever to launch and run. I loaded the proprietary drivers through the hardware control panel and even tried downloading from ATI. Can't even open( window is just gray and freezes)the easy configure window for Compiz. Are the ATI Linux drivers just junk? Or is it this particular card? I also have Mint running on a machine(same one I had the ATI card in) with an Nvidia card and it works great, no problems at all. This is no emergency because I think I'll just put that card in my mothers computer but I would like to know what the difficulty is for future reference.