After zimbra runs for a bit, I noticed that at times when I want to login to the zimbra admin console, it tries to load but then doesn't go past the zimbra logo. It just freezes there.

Its not until I restart zimbra services that it lets me back in.

Everything else seems to be ok. Zimlets seem to work perfectly fine.

Any ideas?

I'm running 6.0.8 on CentOS 5.5