Wierd Photon crash

Had a wierd Photon crash yesterday. While running a Photon program
under the debugger, the screen totally blanked for a few seconds,
the monitor appeared to change modes, and the screen came back up.
After that, the cursor was no longer being erased, and the screen
filled up with arrow images. But most other functions still worked.

Logging out didn’t fix the problem. I had to reboot the whole
machine.

John Nagle

[QNX 6.21]