Once again permitted uri chars. Take a look please

[eluser]PoWah[/eluser]
I have url like this: SITE_URL_HERE/index.php/pages/images/set_as_background/body-bgOLD.jpg

And it shows error 'The URI you submitted has disallowed characters.' on a server, but on localhost (Windows) everything is OK. In this URI problem arises due to '-' character.

Where can be the problem?

P.S.: permitted_uri_chars directive is default:

Code:

$config['permitted_uri_chars'] = 'a-z 0-9~%.:_-';

I'm running newest CI 1.6.1