I'm trying to install guest additions, but am hung up at the video driver installation.
I searched and was only able to find this
http://www.virtualbox.org/ticket/2519
The 'fix' didn't do it for me. There was nothing hiding and I couldn't click anything
Any ideas, thanks!For whatever it may be worth, I thought I had the same problem. It turned out that the WHQL dialog was "hiding" behind the installer window. Once I clicked on that (twice, once for the video driver and once for some other driver after that), the installation completed without problems.
EDIT... rebooted and now it works