android - cannot calibrate

[ragupo]

I had some power outages and my nand got corrupt. So I re-flashed the android image to nand.
Upon booting the ts-10 is wildly in need of calibration, but of course the ts-screen itself cannot be used for that.
The weird thing is, that when hooking up a mouse i get a cursor allright, but the A20 doesn't respond to the mouseclicks. It actually seems like it does recognises the clicks, but they are to swift for a20 to produce any reaction to them.
This leaves me stuck at the wellcome screen.
Any suggestions? I tried connecting a hub, and plugging the mouse in the hub instead of directly into it, but still no works.