ATHEROS AR9285 SIOCSIFFALGS: Unkown error 132

[geo337]

I started using backtrack by booting it live from a usb flash memory I also used the command
airmon-ng start wlan0 to put my wireless adapter into monitor mode sometimes it gave the error SIOCSIFFALGS: Unkown error 132 so I would just restart the system a couple of times until it works I thought that installing backtrack would fix this but now having installed it this error always shows up I've done a lot of googling about the subject but none worked for me.

My laptop is Dell inspiron N5110 its network adapter is atheros AR9285

I ran some commands to demonstrate the problem
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I'm new to backtrack so please don't assume that I know anything
Thanks in advance