Problems with cups and printing

[Peter N Spotts]

Folks,

Within the past two days, cups appears to have flown south. It fails to
recognize my HP 6540 anymore. All is properly plugged in. But while I
can delete the printer from gnome-cups-manager, I can't set it up
again. The program just hangs. I've looked at error-log
in /var/log/cups, and find it's giving me an extraordinarily long
string of the following: 

cupsAddCert: Unable to create certification file /var/run.cups/certs/0
- Too many open files
Unable to accept client connection -- Too many open files

How can I remedy this? At the moment, no files are open or in the print
queue.

Pete
-- 
Peter N. Spotts | Science reporter
The Christian Science Monitor
One Norway Street, Boston, MA 02115 USA
Office: 617-450-2449 | Office-in-home: 508-520-3139
Email: pspotts at alum.mit.edu | Amateur-radio call: KC1JB
www.csmonitor.com | www.peterspotts.net