I've used Zimbra successfully for quite some time -- months, perhaps even a year. However I have had an issue starting it in the last couple days.
After a reboot, the initial flash screen, showing the road / plug / plane icons in rotation, never goes away. I let it run for quite some time -- hours -- but it never completed.
I decided to install the latest version, v1.0.4 downloaded just yesterday, to see if it helped the problem, but it did not. Unfortunately I don't have the version detail for what I originally had installed, although since the problem is consistent I don't think it's necessary.
I've attached the log files. This is running on Windows XP. Again it was running successfully before it just stopped working. I hadn't installed any new software or made any configuration changes.