Is it normal for the X5 to hard reset on its own?

[jaybird512]

:realmad: I was playing a game and the graphics started to get a little laggy. I exited and saved the game, then hit the soft reset button. It went straight into the screen-tapping setup and then everything was gone. I'm guessing this is not normal and I'm hoping I'll be able to get most things back from my back-up and sync.

[Zaniax]

Edit: Removed wrong answer - my bad