Hmm, not sure what the specific problem is with your system or client. Perhaps run a defrag if you haven't in awhile, unload any unnecessary applications, remove spyware etc.
If that doesn't work out try this post for directly downloading them or watching them in a browser window.
http://mxoboards.station.sony.com/matrix/board/message?board.id=rsi&message.id=26829&query.id=0#M26829
Hello jeffers,
Thanks for the assist, I know it is not the solution to the root issue but is the best work around that we have to offer from here.