okay, the o/s upgrade installed on my phone okay, and it seemed okay until I go to run the one and only app I bought, cardio trainer pro-with that you have to have cardio trainer free version installed to use it. At first I thought it was the upgrade, my phone would restart itself constantly, so contacted Tmobile and we ended up do a factory restore, I had already tried to remove the battery and wait and put it back in. Anyway, after the factory restore, I put cardio trainer back on and the pro version since I paid for it..it seemed to be okay, until I went to exit out of the program, then bam, the phone restarted itself. Is there any fix for this short of uninstalling this app? Help! I love this app and paid for it, hate to lose the money for this!