I can't make copy/paste between Windows and Virtual Ubuntu 12.04 to work with this configuration:
Host: Windows 7 Professional with VirtualBox 4.1.20
Virt: Ubuntu 12.04 (64 bit) with all upgrades/updates installed
I tried to use drivers which are suggested by the Ubuntu installation itself and also tried to install "VirtualBox 4.1.20 Guest Additions for Linux" from VirtualBox menu
Everything else seems OK (screen resize, mouse cursor) but can't make copy/paste to work
I also tried to uninstall and install VirtualBox.
Edit: I also tried install VirtualBox Extension Pack
May be upgrade/update of a fresh Ubuntu 12.04 is the problem?