I've looked into the "wikiuser" table of the wiki DB. The email address of user "marchesa" is consistent with the one on his user page, as well as with one registered here at the BB. The email address is not verified, and it seems that no verification email has been triggered recently. A login has been recorded today, so I suppose that the password is OK. So, everything seems to confirm that the email verification is the problem to be solved.
Max
Main site: Login credentials clobbered?
Re: Main site: Login credentials clobbered?
Max & Chuck, I finally got an email verification message to come to me and verified. I think it looks OK now. Thanks for the help and advice!