I'm having problems with my pen input stopping working in Windows Vista. It started when I upgraded to SP1. I'll be using the pen for a few minutes. When I stop and then return to the computer, it often doesn't work. All of my tablet pens don't work on it. When I reboot, the pen works fine.
I uninstalled Vista SP1 completely and the problem doesn't go away.
I tried reinstalling the Wacom driver [Pen Tablet_505-7] several times. The problem doesn't go away. Tech support for Asus suggests restoring Windows to the original factory settings. I'm not interested in doing that since I'd have to back up and reinstall applications and data.