(First of all, sorry for any errors in my bad English.)
I am having a problem with my Xperia Arc S, running Android v4.0.3. When I connect my phone to PC with USB cable, and I'm trying to type anything while it's connected, my phone detects a single touch as a multiple random touches (e.g., I press "w", and it writes "wgjr4"), and when I'm trying to delete errors, it deletes one letter and types several. It's annoying, and there's gotta to be some solution.
Can anybody tell me where is the problem, and how to fix it?