I don't think it would be a Internet specific issue, what could have happend is you probably just printed from Word, then before you tried printing on the Safari/Inernet Explroer somehow you managed to click stop jobs.
Inside of Print Center, double click on your printer and you should see all of the prints you made and a "Start Jobs" button. You might want to delete some of docuemnts in the bottom half of the window (just click on them and the delete button in the toolbar should become clickable) since they will all print out once you start the jobs.
(I don't have 10.2 anymore so I hope this is close enough!)
Hope this helps!