Hello guys.

Just realised that I recently installed a fix from Microsoft.
It was "Microsoft Fix it 50792" from page http://support.microsoft.com/kb/2639658
I now ran "undo" "Microsoft Fix it 50793", from the same page.
Tried to save a text in word to a pdf-file and it worked.

Thanks macropod.
When I was reading your reply, the came to my mind.

So for me, problem solved.