I have a COMPAQ PC with windows 7 on it and a wireless adapter called a "TwinMOS Wireless LAN Client Adapter IEEE: 802.11b 2.4GHz/11mbs" I tried putting it into my computer when it was running Vista (It's factory-included OS) and it would show the other wireless networks as well as the ones in my neighborhood but it wouldn't connect to them. It kept saying there was some unknown reason blocking the connection to the router. What can I do to make this adapter work? I don't wanna buy a new one. Now, slightly less relevant question: I have a couple old laptops, could I use their WLAN cards on my PC or does it not work that way?