Thank you for the reply!
krknopp- I'm hardly using any swap. Here are some quick stats:
Kerry- I've cleared the browsers cache, and tried different versions of FF, IE, and Safari. We run AV/AS for our mailboxes currently. I could see how inbound mail would be slowed down during the AV/AS scans but the web interface is ALWAYS slow, even during low inbound mail periods. I'm a bit apprehensive to post our mailbox.log as it contains a lot of sensitive information. I'll try to do some sanitation and post it. After checking the release notes for 5.0.5, I'm reluctant to upgrade as there seems to be nothing applicable. I also do not want to make the problem worse or get into the Microsoft mentality of "if it doesnt work right, just upgrade it and hopefully it might".
Tasks: 114 total, 1 running, 113 sleeping, 0 stopped, 0 zombie
Cpu0 : 0.0%us, 0.6%sy, 0.0%ni, 95.7%id, 3.0%wa, 0.0%hi, 0.6%si, 0.0%st
Cpu1 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 1026136k total, 979644k used, 46492k free, 45836k buffers
Swap: 2104496k total, 7896k used, 2096600k free, 138540k cached
The log is pretty huge (~1MB) and cannot be attached or pasted in the forum so heres a link: http://www.timnelson.info/temp/mailbox.log