Host - Win8 64 bit with 24 GB RAM, 4 monitors and 2 video cards.
Guest - Win7 64 bit using 2 monitors on the same video card.
Workstation 10
Repeated bug - if I install a program and it greys out everything to ask me to confirm, when it goes back, only 1 monitor is used. The "layout" button still thinks it has 2 monitors. I have to set it back to 1 monitor, then back to 2 and rearrange and resize windows.