I have jboss and websphere server connectors configured, and I got a message when I tried to select one of the server connectors from the drop down icon that there were “No enabled servers availabe – See MyEclipse preferences”. However if I go to the ME preferences and just click on the appropriate server connector (jboss, and websphere 5.0 in my case) then that is all that is necessary to fix it until the next restart. Both connectors have the correct info and are enabled in the pref page. The key is visiting the page and cancelling the dialog then all is well at least until the next restart.