Can't print to PDFCreator, nothing happens when I print to it

HI @ all,
I am running PDFCreator on a terminal server. The most
users can use the software just fine. One user has the problem that, whe
he prints a document to the PDFCreator, nothing happens.

What I have done allready:
- resetted all PDFCreator Settings
- deleted the file contents of C:\Users\user123\AppData\Local\Temp
- checked the security settings of the folder C:\Users\user123\AppData\Local\Temp and its subfolders

What should I do?
Thanks for any help!