I've just set up my WP site in Ubuntu and I can see it all perfectly in Safari, but if I try to access the site in firefox or chrome I can't see the homepage at all - just a blank screen - and if I access an internal page the CSS does not appear to be working.

Any ideas?

http://www.supermommyclub.com
http://www.supermommyclub.com/fun-toddler-activities-learn-about-health/