Document in Document Monitor will not clear off

Just installed 0.9.9 on a new computer.  When I print a document to a PDF file, the document keeps coming back on to the document monitor.  I delete the document, but it comes right back as if it is in a loop. No matter how many times I save it, it will not go away.  It keeps saying there is 1 document in the queue.  I suspect there is a setting that I have missed.  Did not have any problem on my old computer with earlier version.  Running Windows 7 Ultimate