Possible? I'm beginning to believe so. My MacBook Air had the same type of latency issues as described by the MacBook and MacBook Pro users here. The issue seems to be caused by the keyboard manager, the program that controls the F1-F12 keys and such. However, has anyone considered bad hardware to also being a cause? Before my MacBook Air's fan died last month, running Windows Vista or Windows 7 and even Windows XP creates A LOT of sound studdering, stalling, etc. Even opening a single program while iTunes is running causes the iTunes music to play like its in time warp. After my fan died, Apple decided to replace my logic board also (assuming the plug for the fan could've died out also, which was not the case. The fan piece literally broke apart). After getting the system back, Windows Vista (during that time, I had vista installed) didn't have any studdering anymore, even with KBRMGR.exe running (Now called Boot Camp.exe in BC3.0). Running programs are very smooth. I can edit a 10MP image in Windows 7 (current OS now) and play iTunes and have Sins of a Solar Empire (great game btw) running and no studdering. The latency program still shows its "high" but it doesn't have any spikes anymore. Anyone want to comment?