I have Fedora 11 on a VirtualBox. I installed the Guest Additions package following these instructions: http://www.toadz.dk/2009/07/installing-virtualbox-guest-additions-on-fedora-11-in-windows/
It works fine, until I do a System > Administration > Software Update. After the reboot, the guest additions don't work anymore (the resolution is not nice, the cursor does not automatically follows, the shared folders won't work, ...).
I have to re-do the guest addition install every time I do an update (and reboot).
Is that normal? What Can I do?