VirtualBox 4.1.20 (Windows 7 / Ubuntu 12.04 (64 bit)) copy/paste is broken

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?

Solution 1:

From the VirtualBox app menu: Machine->Settings->General->Advanced then set Shared Cliboard to the setting you require, e.g. Bidirectional.