I finally bit the bullet and upgraded this site to the new WordPress 2.6…I thought I was locked out of my own site…It took two days to figure out why I could not log in…user name and password were right…log in again was the prompt…over and over again…then on a users forum, a hint…force a logout to reset cookies…it worked…I’m back…later

Add /wp-login.php?action=logout to your site’s URL to force a logout.