The CUPS printing system just quit after an update to Stable via security.debian.org .. "/usr/lib/cups/filter/pstoraster failed".
I have since purged and re-installed cups, cups-driver-gutenprint, cupsys, ghostscript and udev, downgraded them to versions from Lenny 5.0 but it still doesn't work. Any clues appreciated, many thanks. /var/log/cups/error_log has several odd entries: E [02/Oct/2009:10:12:43 -0700] [CGI] Unable to send 46 bytes to 10.255.255.255: Operation not permitted E [02/Oct/2009:10:13:17 -0700] CUPS-Add-Modify-Printer: Unauthorized E [02/Oct/2009:10:13:26 -0700] CUPS-Add-Modify-Printer: Unauthorized E [02/Oct/2009:10:13:37 -0700] PID 10366 (/usr/lib/cups/filter/pstoraster) stopped with status 1! E [02/Oct/2009:10:13:37 -0700] [Job 2] Job stopped due to filter errors. E [02/Oct/2009:10:13:45 -0700] Purge-Jobs: Unauthorized E [02/Oct/2009:10:13:54 -0700] Purge-Jobs: Unauthorized E [02/Oct/2009:10:32:58 -0700] PID 5991 (/usr/lib/cups/filter/pstoraster) stopped with status 1! E [02/Oct/2009:10:32:58 -0700] [Job 3] Job stopped due to filter errors. E [02/Oct/2009:10:35:49 -0700] PID 6550 (/usr/lib/cups/filter/pstoraster) stopped with status 1! E [02/Oct/2009:10:35:49 -0700] [Job 4] Job stopped due to filter errors. E [02/Oct/2009:10:47:49 -0700] PID 10135 (/usr/lib/cups/filter/pstoraster) stopped with status 1! E [02/Oct/2009:10:47:49 -0700] [Job 5] Job stopped due to filter errors. E [02/Oct/2009:10:47:56 -0700] Purge-Jobs: Unauthorized E [02/Oct/2009:10:48:00 -0700] Purge-Jobs: Unauthorized E [02/Oct/2009:10:48:11 -0700] PID 10213 (/usr/lib/cups/filter/pstoraster) stopped with status 1! E [02/Oct/2009:10:48:11 -0700] [Job 6] Job stopped due to filter errors.