I have a mac mini running lion. I have a samsung ml-2510 laster printer. I will print something and ill first have to "resume" printing. It prints fine. Then I'll print something else, ill again have to resume. It will print both the new document and the previous document. I can delete older documents off the queue just fine, but, its really annoying to constantly have to do this so my print queue doesn't stack. My win7 machine prints fine, so i think this is an OSX issue, not a printer issue. thanks!