CI in folder within Webroot

[eluser]Noahs Arkive[/eluser]
I searched for a like topic, but was unsuccessful...I'm sure this has been asked before tho'. If so, my apologies.

I want to install my CI app in a web root sub folder (on a Linux hosting service):

/domainWebroot/myCIApplication/


I copied my code to /myCIApplication/
Set $config['base_url'] = "http://www.mydomain.com/myCIApplication/";

I get a 404 error when I go to this url. Is there something I'm missing?

Thanks,
Noah