"With Optimus enabled, there is no video during the POST sequence on a E6420 docked to an EPort+ docking station. This means that users can't enter their hard drive password. The only workarounds I've found is to either disable Optimus in the BIOS or connect a monitor to the VGA port on the EPort+. Is this a known issue that's being worked on?"We've also noticed this issue; when the laptop is turned on while in the dock the external monitors (using DVI) will not turn on until the laptop boots to the Windows 7 login screen.