Unable to select "upgrade"

I have followed the guide here http://wiki.modxcms.com/index.php/Upgrading_Guide to upgrade to Evo 1.0.0 and all goes smoothly until I go to www.mypage.com/install and the option to update is greyed out.

I have backed up everything and replaced all the files, leaving out config.inc.php. Any ideas?

When you say you left out config.inc.php, do you mean you didn’t replace the config.inc.php back into the manager/includes directory? You’ll need the config.inc.php to be placed back in that folder for the Upgrade option to be selectable.

yep, I placed it back in and it worked. Thanks very much!