I often get desync for no reason, ping raises up very fast.
Always happens when I am on a server and talking in TeamSpeak at the same time. Thats nearly deathly (up to 500ms because talking)
Was "fixed" in 0.46 or 0.47, it was better in these versions.
Additionally I get often kicked for wrong signatures and get the message "Session lost", very often for a wrong signatured file contains a "rock"..?