Hi I had my iMac to share my ethernet internet wirelessly and it all worked fine, I used it with my iPhone and my PS3 and didn't have any problems. For some reason though airport seems to of deleted all of my settings when I turned my computer on this morning, and when I try to set it back up it doesn't seem to work. I used the 'Internet Sharing' option in the system preferences to set it up again as before, but for some reason my PS3 cannot connect to it, and my iPhone connects to the wireless but I still cannot use internet on it. I'm at a loss on what to try and wondered if anyone else has had similar problems or advice. Thanks.