Hello. My compaq presario F750us stopped connecting to the internet both wired and wireless. It no longer recognizes its Artheros Ar 5700 wireless adapter. The ethernet connection is restricted to local access only. The notebook runs Windows Vista Home Premium. I have followed all diagnostic and repair steps as per Vista's instructions. Two other computers remain connected. The router is Linksys Wrt 54 G2 V1. Any help will be greatly appreciated.