Hi,I have a DELL Latitude Laptop connected to a docking station. I have two external monitors (DELL) connected to that docking station (DVI). The laptop's monitor is closed because I only want video input on my external monitors.Using that configuration, I don't have any input until Windows login screen. I can't see bios post or anything that happens before Windows login screen. I checked for any setting in the bios without luck.Any help would be appreciate.