BB Storm2 9550/9520 :: Handset Screens Flipping

My wife's storm 2 recently started acting very strange. The storm 2 is running .428. About 5 days ago, she told me that she was deleting e-mails, and it just spontaneously flipping screens, going from e-mail, to phone, to voice dailing, to camera, and also to some some other menu's (that she had never seen before), to other screens, going so fast that the phone wasn't working for her. She She didn't trust it to even use the phone to call me, or even answer it if I called her.

That day, when i got home, I went to hook it up to my pc to back the data from her phone, and I saw a white error page (of some sort, I couldn't read what it said), then it rebooted. After the reboot, I was able to backup the data, and the phone seemed to work right then.Then tonight, as I'm coming home, she told me it had started acting funny again. This time, she was typing up a text message, when the phone started double typing (i.e., she would press a letter/number and she would here 2 clicks, and 2 characters would appear on the screen, so she had to spend alot of time removing the extra characters. Then all of a sudden, it started flipping screens, going into phone mode, going back to home screen. Then the a menu would pop up, with one of the items highlighted, but she couldn't change the option it had highlighted. She had to do multiple battery pulls, to finally get it to work.