PostScript printer is selected in the file SURVO.APU by the line printer="Windows name of PostScript printer" For example, printer="HP LaserJet 4M Plus" Default setting is printer=LPT1: which is usually valid for a PostScript printer directly connected to the computer. The names of available printers can be listed in the edit field simply by the command INDEX /PRINTERS,END+2 Temporarily, the PostScript printer can be selected by giving the PRINT command in the form PRINT L1,L2 TO "Windows name of PostScript printer" P = More information on PostScript printing/plotting