I have tried installing and I get he "Zimbra failed to inject Zimlets....." message. I tried a re-download and re-install but no success.
I have checked to see if the backend was running - there is a service called "Yahoo Zimbra Desktop service" running but no process called zdesktop or similar running.
There was only one file in the log folder (zdesktop.out) which I have attached.
As far as I could tell my firewall (the windows one) wasn't blocking the appropriate port. But I am not sure I was checking correctly.
I would be grateful for any help.