I have a 2 monitor setup connected to a 6600, both of which are HDMI, so I have to have one connected via a DP to HDMI adaptor. When Windows starts up the HDMI one is set to the correct resolution but the other is only detected as a generic PnP monitor and can only be set to 640x480. Sometimes it can be fixed by a restart or by swapping the connections over. I don't know if it's a Windows, driver or hardware problem. Windows and the drivers are up to date. Where does the monitor resolution get detected, hardware, driver or windows? Is there a way of getting Windows to check the monitor again or can it only be done on startup?
