Sorry about the delay in posting again - have been away for the weekend.
Does it continue to download? ie, had it downloaded and is just not playing or is it not downloading?
If it is the former, than I'd suggest installing the latest version of Flash. If you've not had this problem in the past then i'd say its a bandwidth problem. Goto
www.speedtest.net and do the speed test. What speed are you getting for downloading?
G