Hi,
Drag & drop and Copy & Paste stopping to work has been a problem since ... years (can't remember when that started fusion 3?)
It usually works again after rebooting the guest OS. This is a feature that is provided by VMware Tools.
It is also possible to just restart the vmware tools binary responsible.
eg. run the following as administrator and wait a few minutes for things to settle down.
taskkill /F /IM vmtoolsd.exe
"C:\Program Files\VMware\VMware Tools\vmtoolsd.exe" -n vmusr
As you mention that you see the problem with all your guest OS's, it is also possible that the issue is at the host OS end. I'm not exactly sure what to do in that case. I would probably first try a full uninstall -reboot- and re-install of VMware Fusion in that case. OR ... maybe just reboot the host first.
--
Wil