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.