Vista Printing

I have a customer what was having trouble printing from Vista earlier today i restarted the server which seemed to have fixed it, but my question is how does Vista handle printing?

After reboot all the documents and reports people were trying to run all came up when they logged back in.

Symptom: Run report and the nothing seems to happen but it will say in the bottom of the window, report request sent or something to that effect, sorry for not recalling the exact message.

Any help that can be provided would be appriecated.