printing problem

[Peter Lesterhuis]

Hi,
Since upgrading to fc6 I can't print to my local printer. The weird 
thing is that I can't even configure the settings  of the printer in the 
cups web interface (localhost:631) because the connection to the server 
breaks down ("Unable to connect  ...    Firefox can't establish a 
connection to the server at cello.localdomain:631.")
Using the gui system-config-printer something similar is happening: 
whenever I make a change in the settings and click on the 
"apply"-button, an error message is displayed, stating: "there was an 
error during the CUPS operation: 'server-error-internal-error' ".
After this cups has to be restarted.

In fc5 all worked well. The printer is a hp psc 2410.

After a failure of cups there is this message in /var/log/messages:
Oct 31 11:08:10 cello kernel: audit(1162289290.918:22): avc:  denied  { 
write } for  pid=10039 comm="cupsd" name="hp.ppd" dev=dm-0 ino=7177492 
scontext=user_u:system_r:cupsd_t:s0-s0:c0.c1023 
tcontext=system_u:object_r:cupsd_etc_t:s0 tclass=file

Does this indicate that it is a selinux problem?
Any help would be appreciated.
Peter.