Bizarre: CSS/Images break with certain word in URL

Hello,

on my wordpress network Top10Reviews, whenever I create a page with URL which contains "-loans" the page will not function correctly. Some CSS will be broken or images won't load.

Here's an example.

I create new site "personal-loans" which gives me this URL: http://personal-loans.top10reviews.co.za/
and it doesn't work - theres no CSS and I can't access anything inside the admin back-end.

The I create new site "personalloans" which gives me this URL: http://personalloans.top10reviews.co.za/
and everything is fine.

Same thing here:

Syndicate content