Docking and Undocking screws up the resolution on my second monito

docking my laptop. I'm a mobile person, which requires me to dock and undock
my laptop several times per day. My setup is: a Dell Latitude D630 with a
Dell docking station. While at I have 20" plugged into the DVI port. The
problem is that Vista does not know what to do when I dock and undock my
laptop. When undocked, I can usually fix any anomoly by using my function-F8
key Undocking isn't such a pain because I've figured out what I can do to get
it working again. Docking the laptop when I return from a meeting is a whole
other story. If I was using the laptop, un-doc it and then redoc it anything
can happen with my display. Sometimes, it refuses to display at all and if I
actually get an image on the monitor, there's a whole process I have to go
through where I need specify the correct screen resolution. Big problem is
most of the time, the display properties won't allow me to increase my screen
resolution past 1024x768, so I have to reboot my laptop. I've have this
problem with Vista, RC1, and now with SP1.