giving wordpress its own directory – trouble..

Hello,

I have followed the instructions as detailed in on three seperate occasions and each time it has failed in the same way. The blog works fine. If I go to https://www.site.com/articles, everything’s hunky dory. But when I navigate to the https://www.site.com, I get this.

Warning: main(./wp-blog-header.php) [function.main]: failed to open stream: No such file or directory in /home/site/site.com/articles/wp-content/themes/nolimits/header.php on line 1

I don’t know what to do. I know that I haven’t missed a step in the instructions. Anyone have any ideas???