I have converted a physical windows 7 desktop to a VHD file for Hyper-V using disk2vhd and all seems to work just fine except that when we RDP in to the VM we cannot extend the desktop across all monitors that we have in use. The main computer we use to remote desktop in to this VM has 2 monitors and we cannot use them both. Any VM that I create from scratch can use both monitors is just the ones that have been converted. I have went into device manager and uninstalled anything hardware related that I can see in there but nothing seems to work.
Anyone have a fix or idea?