Share your experience!
Since I upgraded to ICS, if I try to call someone or get called by someone, part of the system app for telephone calls crashes. An error Message pops up with the notice that my talk app has crashed. If I press "Ok", ist abviously starts again right away and I can make the call, but its not very nice having to do this regularly.
The Other Bug is, that the Option for the auto-rotation of the screen is broken. weather or not I turn it on or off, my screen rotates in homescreen anyway.
Sounds like it would be wise to try a repair of your phone's software with PC Companion. You can find the option in PC Companion in the section called Support Zone. 
You can download PC Companion from the link below.
http://www.sonymobile.com/gb/tools/pc-companion/
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That wasnt helpful
Did that yesterday and now it still happens and the recovery of my backup also didnt work. Many of my apps lost data.
Oh, sorry autorotate works again but the calling still is broken.