3Com905B-tx and Ghost 6.0 enterprise edi

I have Norton Ghost 6.0 enterprise edition, i made update like symantec recommend but i still not able to open a multicast session with a multicast boot disk on a windows 2000 computer. I use the last driver for my NIC (3Com 3C905b-tx) but it doesn’t work anyway!!
I tried with another NIC (Intel Pro Management) and it worked perfectly! I also tried with another type of 3Com NIC and it worked also! Is it a known problem with that NIC? What can I do for this?

Thanks a lot!