First thing, make sure your TCP/IP Properties for both Wireless and Local Area Connections are set to automatic, unless you need your Wireless manually set. Local Area should be automatic (v4 and v6). Once you've made sure you need to only open your Wireless Properties and go to the Advanced Tab and choose to share the connection. Now if you are like me, you may have multiple connections so you'll have to specify which adapter you want it to go to, but if you aren't, then just choosing to share the connection will be fine. When you close it, be prepared for it to take a few seconds to configure properly. To verify the settings, open up Local Area Connection and view the properties of the TCP/IP v4 settings and you should see a manual IP address that Windows has put in place for ICS.
You will also need to make sure your Anti-virus software (if present) isn't blocking ICS. I have aVast on one machine and Norton on another and they both will block ICS unless I tell them not to do so.
That's pretty much it in a nutshell, so if you are having issues you'll need to be more specific with your steps as well as describe the software you have running in the background.
Edit: Holy Shi'ite, I didn't realize this was such an old post. Hopefully they figured it out.
This post has been edited by DemisesAngel: Jun 28 2011, 12:10 AM