Any Ideas?

This has happened in the last week and I can't seem to find a reason/solution. I cannot stream WMV files from the internet when I am connected via my SafeCom modem/router. If I connect using my Speedtouch 330 USB modem then I have no problems. I certainly don't recall changing any settings but my NIC went faulty and I replaced it with a new one. Can anybody explain what is causing this? Strange thing is I can stream Quicktime movies with no problem.

Win2k Firefox and IE

 

Does your router perhaps have a firewall that's blocking the port you're trying to stream through?