HP Laserjet 3000DN - jamming in print que

Hi Guys,

I sure hope someone can come up with some good suggestions here. We
have got a LaserJet 3000DN which is connected to a router and to 3
Windows XP PC's in our workgroup.

Most things print fine but occasionally jubs get stuck in the print
que...the jobs cn be generated by virutally any peice of software that
we print from - there is no pattern.

Whats even more annoying is that we cant delete the jobs. Re starting
the spooler doesnt help. We end up having to reboot the computer to
clear the print job.

Being able to delete the stuck jobs would be nice, but what would be
even better would them not getting stuck in the firrst place.

We are using the HP PCL6 driver, and someone suggested using a
postscript driver.

Any other ideas gratefully received.

-Al
PS: I considered it could be a software firewall problem, but shouldnt
that then affect all jobs?