Dell :: E Series Dock And Display Port

Anyone else experience issues with the display port on the e series dock?

I've got a E6400, E4300 and E4200 that I'm using with a E Port replicator.

I'm connecting it to a dell ultrasharp U2410 monitor via display port.

Several times a day, the monitor will go blank and say there is no signal, then 10 seconds later turn back on.

Several more times a day the monitor will go into standby and say there is no signal, the only way to get it back on is to open up the laptop and press FN F8 several times to switch the outputs, and sometimes that will work, other times it won't. in that case I have to either reboot the computer, or go into the intel graphics settings, tell it to use single monitor, and use the dell digital u2410.

I've called dell support, they are useless. I've updated the video drivers, I've reloaded the computer, I've tried 3 computers (but on the same dock since I only have one docking station).