I have a ATI Radeon video card (with Catalyst video drivers). Why is PerformanceTest locking up during the 2D video tests?

PerformanceTest will lock up during the 2D video tests where you have an ATI Radeon video card (with Catalyst drivers) and have Windows Themes active for Windows XP. These conditions expose a bug in the ATI video drivers. This problem was seen in driver version 7.74 (6118), but was corrected in later versions. A workaround is to upgrade your video card drivers, or to disable Windows Themes.