Okay, I've had my Wacom Graphire 3 tablet for about a year now. It's worked flawlessly. However, something has been amiss lately. After using it this morning for about 5 minutes, it suddenly died. The light would not light up and was not responding. I tried unplugging it and trying a different USB port, but alas, no luck. So I tried about a half hour later. It worked for about 10 seconds and the same thing happened. A few hours later, I got more time than before out of it. It's almost as if it's charging, as absurd as that sounds. Physically, it's in very good condition, with no knicks or kinks in the cord. I'm running OS X, 10.4.9 on a white MacBook. My tablet's drivers are up to date. Does anyone have any idea what's going on here? It's most frustrating.