I remember this KB article from Microsoft's website from last year. Checking it out, I wondered if this could potentially affect the Intel Mac products as well? I downloaded and installed Hotfix 896256 on my 2.0 GHz MacBook and re-ran several benchmarks found in my benchmarking article. My Cinebench and Adobe Photoshop test results were identical to pre-hotfix. Anyone mess around with this and find it affects performance at all?