This is probably a very easy/stupid question, but searching for it appears to be difficult. I have an old computer that I plan to use as an HTPC in my bedroom that I want connected to my network, but not to the internet. I assume there is an option in either my router or computer to allow it. Searching only gives me people who cannot connect to the internet but can connect to their network (as a problem). The computer is running XP Pro and I have it connected to a switch that is then connected to a Linksys WRT54G router. I don't plan to run anti-virus on it, so I really would like it to only access my other PCs. TIA