My Blackberry was giving me a lot of problems. One of the things that it was doing was restarting every 10-15 minutes. After reading through several forums, I came to find out that it was either a software problem from the last update or the battery cover was bent and wasn’t holding the battery in correctly. The easier of the two was testing the battery cover. I cut up a playing card and used double-sided tape to hold it in place. Closed the cover and believe-it-or-not, problem solved. Too bad that by this time my iPhone had already been pre-ordered.