ical - Syncs fine on changes made on Zimbra in the cloud (or client).

ical - Does not sync changes made in ical.

I have deleted all ical directories/preferences etc in case the issue was with ical.

Currently I am only using the zimbra mac client as ical cannot be relied upon.

The reason I want to use ical is that

1. It renders the appointments such that they are all visible which is not the case when viewing multiple calendars in Zimbra web/client.
2. Has a time line

I'm running Running Leopard 10.5.8 - Will snow Leopard cure the issue??

Any one else having a similar issue?