Netscape not drawing .css on categories page

[Guest]

My site ( http://www.raw-pleasure.com ) loads just fine in Internet Explorer.

 

In Netscape 7.0 it *was* working fine, now - for reasons unknown to me, it displays the front page fine, individual product pages fine, but if you click on a category it seems to display without the css being used (text is unformatted, no infoboxes except .gif corners, breadcrumb bar not coloured in).

 

I have completely replaced from a vanilla install:

 

index.php

breadcrumbs.php

stylesheet.css

application_top.php (admin and catalogue)

 

I have also cleared the cache more times than I care to recall.

 

Any ideas?