I have a Yahoo Small Business account and used Zimbra desktop Beta3 mainly to backup my Yahoo mails and to be able to access them off-line. I was eager to install Zimbra Desktop Beta 4 that was supposed to enable me to finally send mails through Zimbra. I have checked for updates and installed Zimbra Desktop 0.91 Build 1338, but now I am not able to synchronize with Yahoo and get an error warning (white exclamation mark on red circle instead of the green "on line" circle). When I go to the account setup window, the error warning persists on the status.
Is there a way to solve this? If not, is it possible to revert to the previous build in order to be able to at least back up my mails and review them off line?