fresh install - entering site info - after save incorrect URL to actions - install file

After site details save - I am brought to an incorrect URL.

I click on save and am brought to: http://www.mysite.com/dev/action/systemsettings/install

there is an "s" missing at the end of the "actions" folder

http://www.mysite.com/dev/actions/systemsettings/install.php

Where can i change this so i can install? Getting errors everywhere with this - code is looking for "actions" folder - not action folder....

anyone else see this?

Thanks!