Hasn't happened to me as yet, and I've been gigging with the T2 for over a month moving it from place to place.

Did you install a hard disk in your Tyros 2?

Perhaps it is defective or has a bad sector or something. Try removing the HD and see if that cures the problem. You may want to also try a factory reset and see if maybe there is some memory corruption somewhere within the unit that the RESET will clear up.

Other than that, raise the humidity level in the room where you have the T2 and watch that static electricity!!

Al