Hi have another weird thing with the last nightly zenphoto version 1.2.3 [3696]
which is not important at all but after logging instead of being redirected to the overview page I get the plugins one.

What are you typing in the address bar to get to the login form?

Touché... I feel really dumb.
(admin.php?from=%2Fzp-core%2Fadmin-plugins.php)

Thank you Stephen and Sorry for the waste of time.