I bought canyon cnp-wf518 wireless ubd adapter with rtl8187B chipset,even thow on their website is says it has rtl8187L chipset(that's the reason why I bought it ).So I installed bt4 final,and when I type airmon-ng start wlan0 it says that injection is enabled on mon0,but when I try injection nothing happens,and it fails when I try aireplay-ng -9 wlan0(mon0 too).Can anyone give me link to a patch or a driver,or anykind of solution for my problem.Thanks.Bt4 is installed on hd.