PocketMatrix

I was playing a game, Odyssey, and suddenley the screen went black with a gray line through it. I thought I had accidentally shut it off or something, so i pressed the power button, but no luck. Then i soft reseted it, and i lost all my programs.
Do you know why this could have happened?

Thanks

Unknown. I once had a proggie on my Jornada, that if I pressed the right part of the screen, it did a hard reset then and there.

Do you think that the full version of Odyssey will do this like my demo version did?
Should this discourage me from buying it, and but Turjah 2 instead?

thanks