[uh-nu-bu]

Thanks for your reply, Raj. Here's a breakdown of what I have observed:

client pc: P-IV 3.2Ghz, 2GB ram, when I click on inbox in Firefox or IE my cpu rises from 0-3% utilization up to 85-90% utilization. Ram stays around 40% due to windows and programs I have open. This also happens when I click on any other folder, when I open a message, or pretty much anything that interacts with the server. This PC is showing a huge load due to Zimbra, all cpu.

server: 2 P-III 1.1Ghz, 512Mb ram, Fedora Core 3, minimal install, desktop, no firewall, running only Zimbra as a service. I'm using the default multi-cpu kernel. I have even turned off extra services like gpm and apmd to streamline it a bit. First of all, I am using swap--about 100Mb of swap. VMstat shows no active si or so however. An average load would look like this: 0.97, 0.57, 0.57. CPU is being used at anywhere from 0-40% (Idles at anywhere from 100-58). The server is not showing any kind of load, imho.

I am not sure the server-side watch scripts are the source of the speed issues.... It seems more likely due to the client javascript or some kind of client-side something or other.