hi, I'm newbie and luckily I could successfully do 'iwpriv wlan1 rfmontx 1' and then test with 'iwpriv wlan1 get_rfmontx' after doing 'ifconfig wlan1 up' but no matter how many times I try and despite moving around I keep getting this when checking injection with aireplay-ng './aireplay-ng wlan1 --test':

/home/user/MyDocs/.documents/test # ./aireplay-ng wlan1 --test
18:07:25 Trying broadcast probe requests...
18:07:26 No Answer...
18:07:26 Found 0 APs
/home/user/MyDocs/.documents/test #

Though there are lot of access points visible in my laptop in wireless connections.
I tried /sbin/ifconfig wlan1 and got the following:

/home/user/MyDocs/.documents/test # /sbin/ifconfig wlan1wlan1
Link encap:UNSPEC HWaddr 00-1F-1F-12-01-4A-44-EC-00-00-00-00-00-00-00-00
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:276 errors:0 dropped:0 overruns:0 frame:0 TX packets:1 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000
RX bytes:27008 (26.3 KiB) TX bytes:66 (66.0 B)

I don't know if its necessary to provide this detail or not, but still hoping it will give more details on what problem I'm facing. So, is there anything wrong or is it that I have to (as mentioned in the step by step guide by mutex) keep trying moving around (which in fact I did).
By the way I'm using edimax ew-7318usg and I'ven't done any extra thing other than the ones mentioned by mutex (Thanks mutex for your effort and the guide, I'm so impatience to see it do what its supposed to do..).
Thanks..

*EDITED:

Oh!! due to my nube in this thing its kinda irritating, my apology!! I resolved it as I had to change it to monitor mode with : "iwconfig wlan1 mode monitor".

I QUESTION THOUGH: when I tried to run the "./aircrack-ng -b <mac addr> dumpfile*.cap" it says: Please specify a dictionary (option -w). So, when I went to the manpage it was written: specify "-" to use stdin. So, should I type: "./aircrack-ng - -b <mac addr> dumpfile*.cap" ??? Thank you.