Fyi, perhaps this is already known, but I just encountered the tsu3000 touchscreen freeze problem after my aftermarket battery pack overheated in the recharging cradle. The pack got so hot, it was almost too hot to touch. I'm not sure why the pack overheated (anyone have any ideas??), but after it did, the screen became unresponsive. Using the needle fix described in post 230, I was able to get the screen to "unfreeze" for a little while, which makes me think that the overheating caused the contacts to expand.

Fortunately for me, a local Tweeter had a used tsu3000 for sale for $38.00 (yes, $38.00!!), so I'm up and running with a "new" pronto, but the experience does appear to indicate that heat may be one reason for tsu3000 screen freezing.

Anyone know if the tsu3500 has the same issue?

-- Dave