I just got the ICS OTA this morning for my D4. If I go into the "System settings", sound section and choose "Volume" the phone will either reboot or force close the settings. Same thing if I choose the "Phone ringtone" or "Default notification" settings. If I go to the default texting app and try to choose a ringtone, I have to force reboot the phone to get out. My wife and son both have Razrs which have been pretty flaky in the sound department since ICS, but not as bad a my D4. Any tips on how to make this work.
Update: I did a factory reset and everything is functioning again. Thanks for the help.