D-Link DWL-G122

I needed a wifi usb don­gle for my Leop­ard (updated to 10.5.7), so i went to a big shop and searched for some­thing with the “Mac-OS Com­pat­i­ble”, i found the D-Link DWL-G122, about 20€, 802.11  b and g not draft n; installed the 10.5 declared dri­vers and rebooted…KERNEL Panic…tried many times, no luck; it works when you plug but if you dis­con­nect and recon­nect you get ker­nel panic; so checked the hard­ware inside (RALINK, RT257X fam­ily model), searched for the man­u­fac­turer, installed his dri­vers (http://www.ralinktech.com/ralink/Home/Support/Macintosh.html) …works like a charm, or almost…the only draw­back is that if you dis­con­nect and recon­nect the pen doesn’t works, so using the pro­vided USB­Wire­lessU­til­ity i found an escape : there is a but­ton, Wire­less ON/OFF, which pow­ers on and off the don­gle, so no need to dis­con­nect

I con­tacted the Ital­ian Dlink support:

ME: hi i have a prob­lem with your dri­vers, they cause Ker­nel Panic on Leop­ard.
Dlink: down­load these dri­vers
ME: those dri­vers are for non Intel Mac.
DLink: from your infor­ma­tions you are using a firmware that we don’t own, where did you take it?
ME: it’s the firmware i found installed in the don­gle, i never touched the don­gle firmware…

They are answer­ing a time a week, this is what a BRAND SHOULDN’T DO WITH HIS CUSTOMERS…