T3 problem (off topic but appreciate some help)

I have a Palm T3 and I'm sticking to it for as long as it lasts (I've got a spare). But it has crashed with the following error message:

"Fatal Alert
Bitmap.c,Line:1082,BMPGetDensity: invalid argument"

I was experimenting with the settings of Fitaly and this happened. If I tap the <Reset> button, it restarts but comes back to this message.

I decided to bite the bullet and do a hard start but that does not owrk. I cannot turn the T3 off with its power button either.

Any suggestions would be very much appreciated. If I can get it basically operational again, I can rebuild it as I Hotsynced it yesterday.

Thanks
Geoff