My monitor was working fine with 10.4.7. I decided to up the resolution to the native 1280x1024 and it worked fine. I then tried changing the refresh rate to 85Hz. The monitor no longer worked and reported that the signal was out of range.
I rebooted OS X into single user mode and trashed the display preferences from the command prompt. The machine now boots fine into OS X, at a low resolution - but as soon as I set the display back to 1280x1024, the software remembers the previous 85Hz setting and the display goes blank.
Anyone know a solution for this? I.e Where the darn prefered refresh rate is stored?