I'm having one of those dreaded "can't get into my own site" moments!
 
I altered the cookie lifetime in settings.php from 2000000 to 900, opened ftp, uploaded
 
...and now I get redirected to this URL every time:
 
http://www.mysite.com/install.php?profile=default
 
looking on the drupal.org forum, it seems as though permissions may be my problem. At the moment, it is 644. I just made a comparison between my settings.php and the currently settings.php in the 5.1 tar and the only difference is the cookie length, so I'm stumped.
 
I don't want to enter any db info on the db config page lest it start to do fresh install. I have backed up db just in case.
 
anyone had this problem?