Why can't I accept calls on my Droid X? I recently updated my Droid X to version 4.5.621.MB810.Verizon.en.US. I can't accept incoming calls though. The screen that allows you to either accept or decline a call doesn't appear anymore.

The top notification bar also disappeared around this time if that has anything to do with the problem. Any suggestions? Thanks.
It appears that restarting it helped. Now the top, notification bar and the dialer appear. I think it may have something to do with the Messages app. As I unassociated my email account before restarting the phone.