virtualbox.org

Hi guys!

I just installed some new RAM into my Macbook PRO and now I can't use my virtualbox anymore !

So I get the following error:

Kernel driver not installed (rc=-1908)

NS_ERROR_FAILURE (0x80004005)
Component:
Machine
Interface:
IMachine {5eaa9319-62fc-4b0a-843c-0cb1940f8a91}

Can anybody help me?

I've made backups of my virtual machine (export appliance) so I could reinstall right?

Thank you very much for reading and hopefully solliving my problem!

Kind regards,
David

EDIT!:
Host OS: Mac Lion OS X
VM: Windows 7 & CentOS (same error for both)
VB version: 4.1.6

I searched some forums and they said a reboot does not help so I didnt bother to try it before I posted this topic
So I did a reboot and it worked!