I reinstalled Windows XP Professional on my Dell Inspiron 6000 Notebook. I am unable to connect to wirelss internet or wired intenet. Nothing is coming up, the wi-fi icon is not even lit. I checked the BIOS and everything is enabled, even the Fn+F2 option, yet that does not even work. Is there any way to fix this and if not, would installing a Vista upgrade resolve this issue?