I have a TP Link USB wireless card with the Realtek RT73 chipset, OS X 10.5 Intel. I plug it in, and it is not recognised by the system. Previously, it would come up with a dialog box when I plugged it in asking if I wanted to configure it. Now, it isn't detected at all. ifconfig doesn't detect it. This started happening after I installed the drivers for the card. The drivers never worked, so I removed them. Every single driver file and kerel extension has been removed, but it is no longer detected. A reboot didn't fix it, and the wireless card itself is fine. Any ideas why I can't see it?