One of my websites is currently invisible because I am getting an error HTTP 403. It has worked before, but when I amended some of the pages it stopped. The other website is fine. I've looked on the internet, but there doesn't seem to be an answer in plain English.
Any thoughts please. Be gentle, I'm relatively inexperienced.
FYO I am using FrontPage on XP Pro (I've also tried it on Windows 7)