hi... i have a error invalid band (0) when i use the airodump-ng
for example i use airodump-ng -b XXXXXXXX -c XX mon0 and it says Error: Inavlid band(0)

CH 4 ][ Elapsed: 4 s ][ 2011-08-19 18:20

BSSID PWR Beacons #Data, #/s CH MB ENC CIPHER AUTH ESSID

00:15:EC:1B:F8C -44 16 0 0 5 54 WEP WEP ZTE

BSSID STATION PWR Rate Lost Packets Probes

(not associated) 00:1F:3A:B05:99 0 0 - 1 0 11

root@bt:~# airodump-ng -b 00:15:EC:1B:F8C -c 5 mon0
Error: invalid band (0)
"airodump-ng --help" for help.
root@bt:~#


Anyone can help me please????