Merge commit '3994396b089c36f432a7af5d542ef594142dd09b' * commit '3994396b089c36f432a7af5d542ef594142dd09b': Fix trackball down and movement bugs.
Merge commit '3994396b089c36f432a7af5d542ef594142dd09b' * commit '3994396b089c36f432a7af5d542ef594142dd09b': Fix trackball down and movement bugs.