Samsung Galaxy S2 — My Galaxy 2 is stuck rotating between the Sansung logo & the Virgin Mobile logo!

HELP! I don't have the vaguest idea what to do! I've tried all the methods I've found to reboot the phone, but none of them have worked. It still just keeps rotating between the Samsung logo and the Virgin Mobile logo. Then, the only way to turn it off is to pull the battery. I'm quite new at Smart Phones (or any other technology, for that matter), so please try to word any advice as simply as you can - like you're trying to explain what to do to a kindergartner (well, no, they're better at technology than I am!). Although I do have quite a few photos on my phone, as well as several games that I got used to playing, if I have to lose everything in order to regain usage, so be it!! If I don't have to lose it all, that would even be better!! And, if anyone out there can help, you would have my Eternal Gratitude!!!

Thanks, but I already tried both of those suggestions, as well as everything else I (or my computer-savvy daughter) could find on the Web. Still the same thing, unfortunately. My daughter says she "just doesn't understand why this isn't working". So, I guess my only alternative is to take it to Samsung. But, thanks for trying, anyway. I appreciate it.