BB Torch :: Won't Work After Factory Re-set?

I received a BB Torch 9860 as a Christmas gift and have been having some problems with it. First of all, I had issues registering a BlackBerry ID and was finally able to register online and set up my ID. I then signed in on my device using the password I'd created, and this prompted a back-up, followed by a lengthy process which I assumed to be a restoration back to factory settings, based on what was appearing on screen.I left the device to complete this process, which seemed to take over an hour, and a message eventually appeared to tell me that it had been successful. From then on, I had problems with the screen freezing and all buttons and icons have been completely unoperational. I rebooted several times, removed the battery, the sim card and the memory card individually and then a combination of all of these things together, but nothing helped and each time the device restarted, the screen was still frozen. I then removed the battery while it was switched on, and this seems to have solved the problem, but I'm now really worried that I'm going to have ongoing problems.