Today for instance I had only the music player loaded (and paused) yet when I received a phone call the phone screen stayed blank until i missed the call. It also took a few presses of the power button to get a live screen to swipe my finger accross (and my phone does not have a lock code). The only other thing besides the music player was that there was a waiting message notification for me. In the thread I linked to above message notifications seem to be linked to this sort of slowdown a lot.[/QUOTE]

I have the problem you describe with the screen not activating to allow me to answer calls. It is a reported bug (I forget the number), however it seems that it is caused by light confusing the proximity sensor. Try this out for yourself. Have someone call your phone whilst you are in daylight and see if your screen lights up. Do the same inside (away from the window). I sent my device back and received a new one, however, the new one has the same problem (foolishly, I never tested it before installing my backup). I am uninstalling everything at the moment and will let you know how I get on. Oh, my previous device was also sluggish before being sent back to nokia.