I have this problem a very long time. Whenever I try to watch a video on youtube or google video or sites like these, the video plays only for two seconds and then picture freezes. On the other I always notice that the video loads normally and completely 100%. I can even move to another part of the video and then it just plays again for two seconds and freezes again. I tried playing with the global and site memory setting that flash player use to store content but I didn't manage to get over this problem (even gave unlimited memory storage).
Does anyone know about this problem?