Macbook stopped work with external monitor

Hello!!!
I need a help!
I always used my MacBook 13" with a Samsung 932BW as external monitor.
Yesterday morning, I had to change this monitor to another one. After that, my 932BW doesn't work any more with my Mac, that just blink when I plug in the DVI or VGA cabe (I've both mini-Dvi adapters).
So, any help to me????
Thanks

See the following Apple article:
http://support.apple.com/kb/HT1573?viewlocale=pt_BR
In particular, you may have to trash the preferences file for displays, which is a file(s) that has "windowserver" in its name. Instructions for how to do that can be found through the above link.

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Message was edited by: FabianFerdinand
Message was edited by: FabianFerdinand

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