Having problems with my KB Gear tablet

I bought this nifty KB Gear Jam Studio tablet, I downloaded a driver from online to make it work with my Windows XP, I modified my WINTAB.INI so I could use the barrel button to use leftclick, Worked fine for a couple weeks, Then It only worked for 3 minutes after a reboot one day, Then it suddenly stopped working, And I don't understand why, I was doing such a great job with it, I don't understand why it'd stop, Can anyone help me out here?