I have problem finding the native resolution for my external monitor. It is 1680x1050 (LG204WT)... 1600x900 is ugly, 1600x1200 is out of sync, and there si no 1680x1050... is it possible to force this resolution. I have XP Home bundled with my amilo...
Did you plug in the monitor before starting Windows? Maybe that is needed, so the driver can recognize it.
You could also try another driver, or tools like PowerStrip.