Error in “save and continue editing”

I have a blog in http://www.aldares.com. To have it here I have used “options” to located the WordPress address in “http://www.myaddress.com/aldares.com/Wordpress”, and the blog address in “http://www.aldares.com”.
When I try to write a post, and I use the button “save and continue editing” this seems to be working, but when I see the Post preview the following message appears in the screen (where the post should be):
“Not found
Sorry, but you are looking for something that is not here”
I think that the problem must be in the selection of address that I have done in “options”, but I do not know how to repair it. I do not have problems to publish …
Thank you in advance!