I have xp home on 5 computers with peer to peer sharing. I just had to re format one on the systems, and when I got it back running, the files on it come up read only when I open them from another computer. How can I edit them from another computer. I have tried changing the attributes on the reloaded computer. When I do the green square disappears in the read only attribute box, but then reappears when I go back into that window to check.