ATI sneaks out Catalyst 5.10a for Quake IV and Serious Sam II Posted on Thursday, October 20 2005 @ 0:05 CEST by Thomas De Maesschalck ATI has launched the Catalyst 5.10a beta driver to fix problems with Quake 4 and Serious Sam 2. The driver can be downloaded over here but it is only intended for people that have problems with Quake 4 or Serious Sam 2. According to some rumours these drivers also include the tool which boosts Doom III performance up to 35 percent.