OK, this probably counts as the bleedin' obvious, but it's always possible that I'm doing something wrong. I got my new 770 yesterday, charged it up, installed the MMC card, and paired it with my phone. The problem is, it keeps crashing. It doesn't do this when I'm doing anything particularly strenuous: this happens when I'm starting applications (including things like the file manager). I haven't yet managed to completely open a webpage - BBC news managed to get the HTML over my phone's GPRS connection before the tablet died again.

I've re-flashed the OS and this hasn't made any difference. The MMC card seems to be fine - I can read and write to / from it over USB. I'm guessing defective hardware, but as I say, I could be doing something wrong.

Any suggestions before I post it back to amazon for replacement?

Thanks in advance.