Hi. I'm trying to watch an episode of lost online and its going dreadfully slow, and it says my bandwith is below 500. I have watched several episodes before with out any video stalls. It has never warned about my bandwith. This happens occasionally throughout the year, but what causes it? My connection is a 3mbps/512k. I tested it on SpeedTest.net and it said the connection is 2.6mbps/400k to be exact.