The "Shared" option keeps appearing in my sidebar when I connect to the internet. I've attached a screen shot so you can see, but basically some sort of network/neighborhood called "accp.citistreet.net" keeps appearing. I have DSL and plug an ethernet cable directly into my 24" Alu iMac running 10.5.2. I have no wireless routers in my house. My AirPort, internet sharing, and file sharing are all turned off. I've checked and rechecked them. The "Shared" option won't appear if I unplug my iMac from the internet and start it up. But as soon as I plug in the ethernet cable it will pop up. I've gone to citistreet.net and it appears to be a Citi bank web site. I do not have an account with Citi, nor do I visit their web sites. If I click on it it opens like a folder with nothing inside. If I select it and Get Info it says "Kind: Neighborhood." Obviously I'm worried someone could gain access to my computer. Is there a way to disconnect this network/neighborhood? Anyone know what it is?