Can only see outgoing traffic and broadcast frames

Hello All, I am trying to smiff my network using a hub on my Router's LAN port. However, I can only see Local LAn frames, Frames originated from the LAN, broadcasts, but no frames comming from other hosts outside the LAN. (When the outside traffic is on my PC I can capture it)

Note that I used another PC on the same HUB and it captures all the traffic successfully.

So it must be something on my PC.

I had Wireshark 1.4.1 and upgrated to 1.4.4 and still have the same problem.

Can you help me?