Problems with internet videos

[rushin]

When ever i try to play an Internet video on ANY web page, 1 of 2 things happen, the first is that it plays, for a couple minutes but them just stops loading at a certain point (the point changes to differnt places if I refresh). The second problem is that the video plays, but then does one of those "cut back start" moves, and the slider has no effect when i try to move it to a differnt place.

PLEASE HELP!!

P.S. this started to happen when i came back from a 2Wk vacation.

 

[Couriant]

Is it possible that the video is playing faster than your computer can download it?