hi,
There is a very painful problem, when i lock my computer,then open it, my flashplayer11 throw a error :
Error: Error #3694: The object was disposed by an earlier call of dispose() on it.

track it by debug and find the Context3D is null, so i create other one by requestContext3D() method of Stage3D class,but there is another error, Error #3600 : No valid program set
maybe it is a bug of flashplayer 11, because there is the same problem in other flash3d engine , the Zombie Tycoon game at abode labs is a cue about the player collapse;
perhaps anyone can give me a idea to avoid the problem, thanks,