I have a newly built computer that I assembled last night and the wireless is not working. When I try to connect, it says "connecting to the network is taking longer than usual" and then after awhile it says "connection unsuccessful"... then I hover over the network icon in the taskbar and it says "unidentified network: local access only"

I cannot open web pages. I have filtered through many pages of google results on this problem and nothing i saw fixed it.

More details:

windows vista ultimate 64bit sp1
brand new linksys wireless-g pci adapter with latest drivers
linksys wireless-g DSL router
wireless network does not have any kind of encryption
(no WEP, etc.)
DHCP enabled

intel quad core 2.4ghz processor
780i nforce motherboard
4gb ddr2 ram
512mb geforce 9800gtx video card
150gb 10000rpm hd
750gb 7500rpm hd
dvd burner
onboard hd audio

two other computers in the house work just fine with the wireless.... one with xp home 32bit, and the other with vista home premium 32bit

It sounds as if the router is not assigning the client (Your computer) an IP address. "Local" access means that Vista assigned your computer an IP address arbitrarily.

When this happens to me, I usually go into the command prompt (In Accessories) and type "ipconfig -release" and "ipconfig -renew" to tell the computer to release the old IP address and attempt to get a new one. In most cases this is successful. If not, I wish you luck!