Thats odd, hmm there is a chance that the monitor settings in the control panel, under display arent set up correctly for that perticular monitor. If your refresh rate is off, or the monitor doesnt support the resolution, that could keep it from displaying.

I wish I could help more, but without actually being there its kinda difficult. if you can, try another monitor and adjust the settings, or jump on ebay you can find laptop lcds for very cheap.

__________________
I don't do this for my family, my friends, women, accolades, pride, or ego. I do it for me and no one else, its just part of who I am.