Error Message -- BCM HPNA 10 Mbps NIC 0005

Every time I boot my computer, I get an error message
saying that something is wrong with BCM HPNA 10 Mbps NIC
0005 (whatever that is -- something to do with networking,
apparently).

The error message directs me to Network Troubleshooting,
but I can't find anything on this problem.

The error message started after I installed the Google Pop
Up blocker. I later disabled it, but the error message
hasn't gone away.

Thanks in advance for any help!

Ginger Griffin