Just to be sure what is going on, can you put

 Code:
?@error
?@serror


directly after trying to add a printer?

Sure there are ways to elevate permissions to get it done but for how long will that work? Until the next update by MS? Slightly tweaking the permissions on the TS might be enough or maybe there is a different cause.
_________________________
Mart

- Chuck Norris once sold ebay to ebay on ebay.