Works for me on 5.0.10 running in Ubuntu. I suspect the problem may be related to your use of port 8080 for the webmail client.
It looks like you are a Network Edition customer based on the zimbra build, if so, I'd recommend contacting support, specifically as this occurred directly after the upgrade, rather than after a change you made.
There may be an issue with the specific build that is not present in the Ubuntu version I have here. |