For some reason ever since I upgraded to Google Talk 2.5.27 I keep getting logged out. It will say 'failed to execute your last action (100)' or unexpected server error. I can sign back in just fine but this is a pain.
Same here and its very annoying. I wonder whats causing this...
you get logged out because you can't do data and voice at the same time so if it tries to refresh your contact list (if people signed out, in, idle, status change) then it will see no connection so you're logged out.