resolution resets on every startup - new laptop

[Surf]

Hey CTH,

So I just got a new Vostro 1700 (great deal, thanks luckytxguy!) and I love it. The one issue I have is that every time I restart the computer - or startup after it has been shutdown for the night - right after the system tray finishes loading the monitor goes dark for a moment and resets the resolution on my 20" monitor to 1440x920, which is what I have the laptop running at.

It's a pain to change the resolution back every time - any ideas what could be causing this? 10 minutes of googling turned up no answers.

Surf