As a Current (Toshiba M200) and previous (Toshiba 3500) Tablet PC user, I was very happy to learn that we have fixed a problem with a memory leak in Windows XP Tablet PC Edition 2005. It causes a gradual decrease in available system memory. This loss in available memory causes degradation in system performance. When this behavior occurs, the user must restart the computer. This problem is caused by a memory leak in the tcserver.exe service.

You can get the fix at: http://www.microsoft.com/downloads/details.aspx?FamilyID=C4EEBB54-14E3-408E-8C63-0A382E8D9239