I made a page using the Contribute templates and uploaded it on my server. A
few days later I opened the same page in Contribute, edited it, but as I try to
save it back to the server I get the message: The filename you entered already
exists. Please enter a different filename.

Why?? This is extremely frustrating as I cannot advance with my page. What
is wrong?? Any help will be appreciated.

I use the Mac version of Contribute 3.1