vboxdrv not loaded!

[jona]

gurus,

when i try to start W2k virt machine, i get these message:

VirtualBox kernel driver not installed.
VBox status code: -1908 (VERR_VM_DRIVER_NOT_INSTALLED).


Fehlercode:
0x80004005
Komponente:
Console
Interface:
IConsole {d5a1cbda-f5d7-4824-9afe-d640c94c7dcf}

i´m running snv_88 and VirtualBox 1.6

bash-3.2# /opt/VirtualBox/vboxdrv.sh
VirtualBox kernel module (vboxdrv) not installed.

how can i load the vboxdrv?

br

jo