It is also possible to disable driver signing without having to select the option in the F8 menu. Just go to start -> run -> cmd and execute the following command:
bcdedit.exe -set loadoptions DDISABLE_INTEGRITY_CHECKS
More info on the Techpowerup.com Forums.
Doesn’t the -set have to be /set ?
Besides, I don’t think the old permanent disable config for driver signing doesn’t work anymore with vista 64 SP1 and server 2008.