Today while printing a 4 MG newsletter document in Microsoft Publisher 2003, on my HP Pavillion 503n with less than 1G memory, I kept getting an error message: PDL request 016-720. Then the printer (Dell color laser 3110cn) would tell me to press cancel and I had to restart the printer repeatedly to get one or two copies to print at a time. This was a 4 pg document with about 30% color, printing two-sided and it had mail merge addresses. To print 150 copies took over 3 hours, with constantly stopping, shutting off and restarting both the printer and the computer. It printed better when I deleted the mailmerge and printed two pages at a time, rather than the 4 pages. Last MONTH I printed an 11 MG document in 20 minutes with no error MESSAGES. Does this sound like hardware problem, a memory problem, or something with the mailmerge? My Microsoft updates are all current and I've done all the basic housecleaning I can find using System Tools. Thanks for any suggestions.I would delete the printer from the computer. Download the latest drivers from the printer manufacturer. Then install the drivers, and try a test page. Then try the project again. Seen drivers get corrupt before ... Also, how is the printer set up, LPT, USB, or Ethernet?It's set up by USB. Thanks for your suggestions. I'll try them this weekend.