Yes, I already have touch switched off like that. But, the hardware is actually still active -- if I let the computer go idle and the screensaver turns on, I can still wake it up by touching the screen (though the cursor doesn't move). So I think I need to reach a bit lower into the driver stack. My machine already came pre-loaded with the latest Win7 firmware (0115), but it's interesting there's a separate one for Win 8 (3033). The 3033 firmware has a note that reads, "For Windows 8 only," so I'm not certain I should flash it. Which firmware are you running on your Win 7 installation? I'm using Paint Tool SAI most of the time, and that's hardly CPU intensive. I also use Inkscape, which needs more CPU (but single-core only). If it's a process priority issue, I'll try to up the priority levels of the driver. Interestingly, the 2 ISD_Tablet.exe processes are only at priority level 10, and ISD_TabletUser.exe is at priority 8. Could ISD_TabletUser.exe be trying to catch up to the higher priority processes at irregular intervals? I might try locking their affinity to a single processor, too. (Actually, now that I think about it, there's a laundry list of things to try.. adjusting USB buffer size, USB sample rate/overclocking, DPC latency, etc. I might start with capturing USB packets and see where that leads.) Yeah, I just need to be reassured that I don't have a dud unit! Warranty repair is severely difficult for me since Fujitsu does not service this part of the world (Hong Kong). I had to import the notebook from Japan (and it took months!).