I have a Daewoo HL710S LCD Monitor that is Plug & Play and DDC 1, 2B (whatever that means)

It works fine with a Dell computer running Windows 2000 Professional.

I am now trying to hook it up to a Compaq Evo (D51S) that has Windows XP Professional

All I get is a “No Signal” message on the monitor and then it goes to sleep.

Also, the Compaq does not work with a ViewSonic ViewPanel VG181 (I also get the “no signal” message. But, the Compaq DOES work with another (more recent) monitor.

I have tried:
1. checking and rechecking and triple checking the power and video connections
2. resetting the refresh rate to 60 Hz.

HELP!