This has been the message greeting me for the past 2 weeks. It would seem like my Cintiq 21UX's drivers are self destructing 5-30 minutes into use and the only band-aid i've been able to find is a computer restart. I've really wanted to hammer through another piece but the only frustration-free time i have is over lunch at work. I've lost a whole week to real productivity at home and with a possible move coming up an update is looking grim.