I have an interesting problem, and it only seems to be happening with one account that I know of.
The user logs in to the advanced client and clicks on the Address Book tab. The browser pane changes to all white background with the word "Loading..." at the top and the browser becomes completely unresponsive.
IE does not handle it very well....I believe the user gets the Zimbra popup that says server is busy...blah blah blah.... so they eventually cancel the action and get back to the Mail tab. I think if they just wait....it never appears.
I tried it in Firefox, and it goes unresponsive there as well however, I never saw the "busy server" popup. It just took between 5 and 7 minutes and then it finally responded and I got to see the Address Book. From that point on I can click back and forth to the Address Book tab, click back and forth between the alphabet and such....and it will be fine unless I log out then back in to Zimbra. Then I have to wait all over again if I click on the Address Book.
I haven't seen anything in the logs yet to tell me why the server is taking so long to respond.
Has anyone else seen this before?