yahoo launch video problems

I'm attempting to watch yahoo launch music videos. At school on the LAN, I can watch them fine using my laptop. At home using my laptop and Comcast provided cable modem and Netgear router, I'm having problems. When I click a video, the player comes up, chokes a little, and then plays a completely different video than the one I clicked on. My desktop plays them fine at home but not my laptop. I also have problems playing news videos from MSNBC only on my laptop while at home.

Any suggestions?

One other bit of information...my network card is lit green while at school but is amber/orange/red at home.