AMD Dual Core Perf Optimizer
AMD has a patch out that addresses timing issues that occur when a developer uses a processor timer instead of a Windows one, and thus can't account for power-saving OS feature effects. It helps with issues in Distant Guns, and I suspect it's related to the sound issues in various games, perhaps Titan Quest and CivCity Rome.
Anyway, if you have an AMD dual core and you didn't see this before, here it is. First download link.