So I installed the new wacom vista driver for my toshiba m400, and all was happy. Then when I put my computer to sleep or hibernate, my newly gained pressure sensitivity dropped. In fact, the computer wouldn’t even recognize the pen at all. I’ve found 2 solutions, the second one being better:
1) Reinstall the wacom driver. It sucks because then you have to restart AND the problem occurs again once the computer goes to sleep.
2) Remove the preference file. Start menu > All Programs >Tablet > Tablet Preference File Utility
Click on “Remove My Preference File” and all will be good again, no restart required!