Recently purchased a Blackberry Storm - happy with functions and access, etc. - however every so often the unit shuts down - once/twice a day - I then have to reboot (remove battery) and so on???? It is a replacement phone from Blackberry as I had water damage with my original....are replacements new or refurbs? What other than a "bad" phone would be the reasons for the shutdown if any?
Outside of you having installed a 3rd party app that is poorly written, it should not be rebooting. I have not had a single random reboot since quite a few OS's ago. Are you running .148? What is your memory like? Also, do you have a pretty good signal where you are?
I would guess that you did get a refurb, but that does not mean anything bad. I think they are going over them very well these days.