My website is http://micuerpomilogr.com and it's a brand new install. Each new post produces a 404 error. Pages are OK. My other sites on this install appear fine. I don't yet know about brand new sites as I am about to test other new ones. Any help would be greatly appreciated.
FOLLOW-UP: I think that there is some kind of problem I created when I deleted the site and now it doesn't work when I tried to create a new one.