This is the latest firmware/driver revision posted by Lucent themselves as of March 2K. It works like a charm. Enjoy, it took half a day to find this one. *Note Win2000 users may have to use the device manager to install and not the setup.exe. As always, back-up your original drivers, just in case! Also, I have heard that it is best if upgrading from version 5.xx or lower to first upgrade to 5.66 or lower then get 5.75.