Tiger Problems - Dual Display


Just about every time that i disconnect my external monitor (Samsung 193P) the screen on my powerbook (1.33 G4 12") goes blank and never comes back on...

Tried hitting the mirror displays button, but always end up having to force a shut down (hold power off).

The problem happened infrequently with the last release in Panther but it seems to be a constant thing with Tiger.

Any advice?