The filename seems to have changed to "iwlwifi-4965-1.ucode". (As per diff:). % cvs diff -r1.25 -r1.26 if_iwn.c ... < if ((error = firmware_open("if_iwn","iwlwifi-4965.ucode", &fw)) != 0) { --- > if ((error = firmware_open("if_iwn","iwlwifi-4965-1.ucode", &fw)) != 0) Cheers, --Dave