Hi, then problem solved with Atheros 242x... i have another little problem ...
when i try to use aireplay-ng to deauth attack... aireplay says "not, dear Mr Kko, mon0 is on -1 channel but AP is on x channel"...
ah ah ah ah ah ah ok , not problem i'm a genius!!! iwconfig and get going!!!
not!!!

ok i'm a big genius... then i try to stop mon0 and restart to specify correct channel...
not!!!

ok , maybe i'm not a genius, maybe some one have a suggestion?
Please... :-(