I have a problem... I bought a WUSB54G ver. 4 for my Sony Vaio, which as a USB 1.1 which should be okay. I installed the driver, (the updated one on the internet) and when I plugged in the adapter... the led lit up for a second and then turned off. No association was made with the router... which I think is properly installed. Help is appreciated... as I don't have internet on that computer now.