Problem capturing traffic with wireshark on a Dell D620

I have Wireshark installed on a Dell D620 with a Broadcom NetXtreme 57xx NIC.  I have port mirroring configured on my LAN switch, however, Wireshark captures no packets when I connect to the mirrored port.  I can connect another PC with Wireshark to the same mirrored port and I see tons of packets.  It appears to me that my Broadcom NIC is not being placed in promiscuous mode but I have no idea how to fix that.  Any help would be greatly appreciated.
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davidcollinsonConnect With a Mentor Commented:
this may help -

the tools here will tell you if it is running in promiscuous mode at least you can be certain your on the right track

Could also try ethereal -
etcitAuthor Commented:
I was apparently mistaken. The promqry app reports that my NIC is in promiscuous mode when Wireshark is running, however i still see no packets other than ARPs and broadcasts.  I'm at a loss.
:(  at least you can look down other avenues now

tbh cant think what else to suggest myself  - let you know if i think of something!
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