Camera frezing up

Another expert that owns the e900 says:

"Surprisingly enough, most freezing problems (and other problems, too) can be solved by gently hitting your camera. It works! Just remember to be gentle."

But after reading a few forums, it sounds like one of two things:
1.) keep in mind that this will occur if it is connected to the USB cord and PC

2.) Perhaps your power button is not functioning?

Here is the manual, but it doesnt seem to say much about this except that if you are still covered under warranty, to contact Fuji

Hope this helps :
-TJ