Hello (first sorry for my english)
I have a problem with my LinkSys WUSB54GC (shown as RT2500?):
first my commands at the beginning:

ifconfig rausb0 up
iwpriv rausb0 forceprism 1
iwprif rausb0 rfmontx 1
iwconfig rausb0 rate 1M
iwconfig rausb0 mode monitor
airmon-ng start rausb0

then I use airoscript (h!!p://trac.aircrack-ng.org/svn/branch/airoscript/)
scan OK;select OK; attack:
there are two variants of failture:

if I use the BT2final build in driver:
he says accociate request successfull
authentification request successfull
he repeat these lines often but after some time the :-) was shown (and then he repeat again the lines)
but i have not 1 ARP packet capturet

if i use the rt73-k2wrlz-1.1.0 driver (h!!p://homepages.tu-darmstadt.de/~p_larbig/wlan/):
he say 5 times sending accociaten then he stop and nothing happen (0 ARP)

i use aircrack-ng 1.0 dev 654 (if i use --test: after 0/30 [or something like this] he stops)

some ideas? (sorry for my english again)