I have a small home network running Windows XP Pro. I have no problem sharing printers, but can't seem to share files, even though I have file sharing on. When I click on a resourse on another computer in Windows Explorer, it pops up a window asking for a user name and password. I type in the info as if I was logging on to that computer locally, and it says I don't have proper permissions. I have administrator permissions on both machines, and file sharing on both machines, and I can share printers. I don't understand this.