I got and installed VirtualBox Guest Additions by running
autorun.sh and then
VBoxLinuxAdditions.run as root, but Slita still doesn't go full screen in Virtual Box running on Windows 7.
The max resolution is 800x600. I enabled 3d Acceleration in Settings too.
When installing Guest Additions I get
Execution return code: 2 ex000020b: Unknown Error
How to go full screen?