First of all, you've not specified *which* type of ethernet board you
have, or whether or not it works after that message.

Secondly:

ed0: len 0000 nlen 2600 start 0c curr 0d next 00 stop 40.

Unfortunately, there's one important bit of information I didn't have
it display.  Try changing the printf to:

			printf("%s: len %04x nlen %04x start %02x first %02x curr %02x next %02x stop %02x\n",
			    sc->sc_dev.dv_xname, packet_hdr.count, len,
			    sc->rec_page_start, sc->next_packet, current,
			    packet_hdr.next_packet, sc->rec_page_stop);

and see what it says.