I upgraded to TeamCity 5.0 EAP yesterday and server and Agents seem to be working fine.
Today I wanted to try the latest Addin for VS 2008, so installed the new version after removing the existing one v4.5.3 (BTW VS reported an error during the uninstall although the IDE was not running, I ignored it). When finished I launched VS but all options under the TeamCity menu are disabled apart from 'Help' and 'Options', including 'Login...' and 'Logout' so I cannot connect or launch the Addin. It seems that also the toolbar buttons are all messed up with duplicate entries, and a 'Login...' button which is enabled but does nothing upon clicking it.
I tried uninstalling / re-installing & rebooting the machine to no avail.
BTW, the installer top header for the Addin still shows v4.0 rather than v5.0 but the full version numbe ris v5.0. etc
Thanks in advance for any help.