So I just recently (about 12 hours ago) decided to give Parallels a shot. I've been using VMWare for about 2 years with great success, but after hearing great things about P7 I thought why not? Well, things seem ok as long as I don't want to use Coherence. As soon as I select it I get: <SNIP> Unable to switch to Coherence The virtual machine display configuration could not be applied...yada yada </SNIP> I've tried removing and reinstalling the tools, no success. I've verified that the only display adapter listed is the parallels display adapter in the device manager. I also edited the VM's config file and changed MaxDisplays to 4, which is how many I have. Now, about my system. Mac Pro (Early 2009) OSX Lion 10.7.1 2.93GHz Quad Xeon 8GB RAM Dual ATI 5770 video cards 3 x Dell 2408wfp monitors (1920x1200) 1 x Viewsonic VX2035wm (1680x1050) 90GB SSD (Main boot drive) 640GB HDD (Boot Camp drive) 1TB HDD (Home directory) The virtual machine is my bootcamp partition running Windows 7 Pro with all the latest updates. I've given it: 1 CPU 1024MB RAM 256MB Video Pretty much the defaults. Any help is greatly appreciated. Thanks!