small update:

Performance issues solved by reboot and reinstall of Zimbra. Now it flies on FireFox and IE.

IE has a bug. When trying to add new appointment via right click, nothing happens. It...

Firefox 1.5 (latest) and FireFox 1.07
IE 6.0 something (latest from Microsoft+all patches)

Can't give the exact cpu and mem usage as I left the work. If I remember correctly cpu usage was very...

Good stuff
-installation = easy after adding that missing zimbra user
-really good web interface
-search/tags etc. Lots of good comments from our staff
-adminstrative stuff

Bad stuff
-IE=...