iprint on OES2-SP1

For the last week we seem to have been experiencing issues with iPrint

2 complete system crashes and just now very very slow performance resulting in printers not showing up and

I have noticed that there seems to be a very large number of

httpd2-prefork processes running?? is this right?

The last two crashes seem to corrupt the certificates as well as I have had to regenerate them. And the same again after a graceful reboot?

Any ideas???