This seems to be the thread to talk about the periodic pen lag glitch on the T902 - so I'm reporting in with my experience with the newer Wacom driver (7.1.0-8) from the Wacom site. Unfortunately, I've seen no improvement on the random glitch issue with this driver. I do wonder if there is some kind of background process that is interfering. Also I've seen the ballooning memory use you experienced with the ISD_touchuser.exe process, stoneseeker. Though I don't think that is causing the glitch - since even when I close that process the glitch problem persists. Still, that memory use is insane and wasteful. I'm running on factory installed Windows 7 Pro. Has anyone that upgraded to Windows 8 had any better luck with these issues?