I have a Dell Dimension 9200 XP SP3 2GB RAM Was working OK but now comes up with Spoolsv.exe Instruction at (various addresses) referenced memory at (same various addresses) the memory could not be read. As an aside on startup I get a similar message re LUCOMS~1.EXE but if I cancel that does not reappear and Norton AV works fine. I have tried the usual restarting Spooler Service, the Registry changes suggested by Q312052, deleting all .spl files etc. but to no avail.... Only printer attached is an Epson R1800. Any more ideas? This problem means I cannot print from this PC and that the error keeps appearing which is even more of a pain.