I have an xperia x10 which I recently upgraded to 2.1. Ever since then the screen turns black as soon as I hit the dial button - but only when I have the cover on it. It is a cover made for this phone and it didn't do it before I upgraded. Nothing brings the screen back except removing the cover. The phone call is going through because I can hear it just fine. I just can't do anything else. I really want to use the phone with the cover because it gives it more substance, which is something I need. If there is anyone that can help me, I would appreciate it more than I can say.