Wireless network issues

Well I have a linksys wireless router that has one computer connected wirelessly (working) and one that is hard wired (working). Now I just bought a dynex pci wireless card for another desktop. Now enters the issue. Everything installed fine (check). I can see my wireless connection (router check). But I cannot connect to the internet at all. My signal strength is strong and I can see sending and receiving packets. Obtain IP auto is on. DHCP is on. Network ID is as all the other computers are. I jsutc annot seem to connect to the internet. Oh yea I am using 128 WEP security and all that info is input correctly. At least I assumed so because I can see my signal strength and all that jazz.

But just no internet.

ANy ideas or things I can check? BTW this is for my home network.