1and1 hsoting uri string converting periods and spaces to underscrores

[eluser]CroNiX[/eluser]
spaces and periods in the url are not valid and should be converted to uri appropriate characters. If you are going to display them in the url run them through urlencode first. Then $this->uri->segment(3) should return the proper name and your host won't hijack your url.
http://www.w3schools.com/TAGS/ref_urlencode.asp