dell d610 video issues

I've already sent feedback about this bug to Microsoft, but I was wondering if anyone else has had this issue. I installed Vista on a Dell D610 w/ ATI X300 and I usually connect it to a Port Replicator while at work. Vista works great un-docked, but once in the docking station, when launching Vista (before reaching the Ctrl-Alt-Del Screen) my monitor goes into Power Save Mode. I've tried Analog, DVI, changing the power settings to never turn off... But nothing seems to work. Today I had to revert back to XP, because I couldn't get the monitor to display an image at all... We've tried it on a different laptop (same make and set-up) and it had the same issue. So basically, has anyone had the same issue, if so, has anyone been able to resolve it?