MBP external display, weirdest problem...

[11miles]

Hey...

From day one i have the samsung 20" connected to DVI and my MBP.
Worked liek a charm...

I have moved the table from one room to another.
Now all of a sudden, MBP doesnt see the ext. display. When connected through VGA it does.

is there a way to reset all the external display settings or something?

Any advice, i have tried unplugging, restarting....
No luck

thanks

matt