No, I'm using a custom setting, but I'm also turning off the dof and motion blur. The problem is if I set the resolution to anything higher than 3000 X whatever X 300 DPI, I then have to reinstall the software to clear out whatever sort of glitch this is causing. Shutting down, rebooting and clearing out any scheduled jobs does not help. Only reinstalling the software frees up the system again.

I've just verified this this morning by painfully having to reinstall 4 times in order to see if I could recreate the problem.

Regards.
James.