admintools is unable to authenticate with dbadmin password

I was removing a node from Vertica using admintools => Advanced tools menu => Remove hosts. The Ganglia node (which has been configured with the cluster) became unresponsive and the delete node procedure "hung" after it had cleared the data from the node. I eventually killed the process. Now when I go back to the admintools ... Remove hosts, it still shows that node, but when I select to remove it, it asks for the password and when I type the dbadmin password it says : Error: Unable to connect to the database. Hint : Username or password could be invalid. However, I can connect using vsql using the same password and it works fine. I am not sure why this is happening and if admintools maintains a different password in some config file which got messed up during the remove node process hang. For now, I am able to use the shutdown and startup cluster despite the wrong password, but anything else that needs a password like add / delete nodes is failing. We are using Vertica 5.0.4. Any help will be most appreciated.