screen went blank after upgrading the subscribe2 plugin. i deleted the plug in via ftp, to no avail. i've tried all the steps on other posts on the subject ad reinstalled wp but nothing. the site i'm working on is at http://www.realfoodtraveler.com/newsite/ but when i add the /wp-admin to be able to log in, it changes to http://www.realfoodtraveler.com/newsite/wp-admin/install.php and is a blank white. it's hosted at yahoo. they have tried everything they can think of. what does the "/install.php" mean? any ideas?