can't get app to work on production server

I uploaded my asp.net pages and dlls, etc... to my webserver today via FTP to test it out... I have come to learn that when dealing with a webhost, you need to do little tests to make sure what I want to accomplish will work on the web server, even when it works fine on my local machine....

so I upload my webpage and of course it doesn't run... but what I can't figure out, is why I can't get any detailed error info...

I set CustomErrors="off" in my web.config file... yet when i nav to the page, it gives me that generic error statement and tells me to see detailed error info i need to set CustomErrors="off"... doesn't anyone know what I am missing?

If I am not mistaken customeerrors is case sensitive so it should be

CustomErrors="Off"

in your post you have

CustomErrors="off"...

My Common IIS Mistakes:

Is IIS running?
Did you make the virtual directory/directory an application?
Did you set any required Application Mappings (HttpHandlers, custom file extensions?) ?

As gearbolt pointed out: Xml is CaSe-SeNsItVe, you must be careful of this.

If your using SQL Server:
Did you install SQL Server? (i have spent hours these silly mistakes)
Did you copy/import/ect your database?
Did you Update the Connection String?
Is the Service running?
Does asp.net process have proper permissions?