Internet problem....

Hey, hows everyone doing... Let me get right to it... First of all i have Bell Sympatico DSL internet. I have a D-Link router with 2 comps hooked up to it. On my other comp, the internet was working fine about 3 hours ago. I ran a Spybot: Search and Destory scan aswell as a AdAware Scan on it just because i hadnt in a while. Nothing special came up with the scan, on spybot, it found 2 small things that it quickly erased. On adaware it found 7 objects and most of them being cookies so i just clicked fix. I restart and all of a sudden my internet doesn't work. I can still login to MSN Messenger for exmaple, but opening IE or Firefox doesn't work. When i go start>run>cmd and write ipconfig, my ip isn't there anymore. There are no numbers just 0.0.0.0. Any ideas? Internet still works fine on the other computer, which is the one i'm writing from.

 

Under the Local Connection it says "Acquiring Network Adress" and just stays like that. MSN won't turn on now too. I checked the router and everything seems to be plugged in fine and whatnot.. any ideas?

 

Umm where would i imput that stuff on the computer thats not working? Also, on the computer thats working, when i go to network connections, right click on local area connection, click properties and go to the Authentication tab, theres a check beside "Enable IEEE 802.1x authentication for this network".. on the one thats not working i can't check it, its grayed out. Does this mean anything?

** EDIT: You know what, i really would have liked to found out what the problem was, but i have exams and need the internet on both computers. I ran a system restore to a few days earlier and it works now. Thanks for your effort.