When I try to publish my updated site I get message

"Base directory public_html does not exist would you like to create it?"

If I say no then publishing just stops, If I say yes it creates public_html_ in my root directory then stops.

The only change since my previous successful publish is that I am now using windows 7.

I have read the compatability sticky and I am running as Admin.

Grateful for any suggestions thanks Pye