Playing on .61.136770 Stable branch, join a server, join game, play for 5-10 minutes, then game freezes, sound stops, still showing last scene. Unable to regain control with any button press. Ctrl+Alt+Del is the only thing that gets me out of the game short of the power button. This was happening also in .61 exp. Was the reason I could only play on stable branch, but now .61 has brought this problem with it to stable.

Upon trying the game some time later, now playing in "Stable" version .61.136821,I have found that playing in 1st person perspective freezes the game quicker than 3rd person. Also, the game freezes 100% of the time when i zoom in in either view.