Cheers for that roisoft : )

That file I mentioned earlier. It wasnt anything like applendes. I was NVDAResma.kext!!!!!!!!!!!!!!!!!!!!!!!!!! What is this file

Just put it back in the extensions dir and falls over like it did previously.

Anyway I am still getting:
DirectoryService: Couldnt find root user. Sleeping and trying again.
DirectoryService: Couldnt find root user. Sleeping and trying again.
DirectoryService: Couldnt find root user. Sleeping and trying again.
DirectoryService: Couldnt find root user. Sleeping and trying again.

What are the exact commands that I need to do:
clear the kext cache
repair permissons
then finally create the kext cache again?

I presume this is the correct order?