Add document sends to my color (default) printer

 I just installed PDFCreator in an effort to combine documents in to 1 pdf doc.  I launch PDFCreator, click the + (add) icon, select the 3 documents, and click Open.  Then I hear my default printer fire up and start printing the 3 documents.  Am I doing something wrong?  I've uninstalled and reinstalled and get the same results.  

Also, is there a way to default the File type to .pdf instead of .ps?

 Forgot to mention, I'm running Windows 7 Professional 64 bit.