I guess it's been a very long time since I've spent any time on these forums. Either I'd forgotten or I just never realized what a common problem this is. I just found this in another thread:
Quote: Originally Posted by ShawJohn
Sounds to me like the same problem the 7" lilliputs get. The touchscreen overlay becomes delaminated as the glue holding it all together melts when the screen gets too hot. Its starts off erratic, then eventually the whole right hand side of the touchscreen will stop working. This problem was acknowledged by Mo @ Lilliput UK Tech support.
Well known fault on Lilli's. Only known fix is replacement overlay, costs about £40 IIRC from Armen @ digitalww.com
Sounds like sufficient confirmation to me, so I guess that settles it. There's the problem, and I now feel a lot more confident in saying that here's the fix. Enjoy, everybody.