Hi, We have 2 Macbook Pro's - one is running OS X (10.6.8) and the other is running Windows 7 (only). We have a desktop PC which is running windows 7 and want to connect this to the Macbook Pro to use the Macbook display - is this possible? We have purchased a VGA cable and a Mini DVI to VGA adapter cable from Best Buy (they said it was possible to do it). However, when the desktop is connected to the Macbook Pro (the windows 7 one) the screen goes black and we cannot switch to either the Macbook display or the desktop display. Any ideas? Thanks in advance.