I just did a clean install of Yosemite, and installed the latest release of Fusion, however, I am unable to use multiple displays in fullscreen or unity mode. My VM is running Windows 7. When I select "Use all displays in full screen" and enter full screen mode my monitors are all mirrored. I have tried rebooting the VM and host machine several times as well as reinstalling VMware tools to no avail. I also tried creating a brand new VM with a fresh install of Windows 7 but got the same result. When trying to enter unity mode I receive a message "Display configuration is not supported. For best compatibility, shut down the virtual machine, upgrade the virtual hardware compatibility to the latest version, and ensure that VMware Tools are up to date." I receive this message on both my new VM and imported one. Compatibility mode is already at 11 and VMware tools is up to date.
Has anyone else encountered this?