Themeroller: Arbitrary performance or 404/timeout issues

http://ui-dev.jquery.com/themeroller/ works (icons are there), but

takes a looong time to load. If it loads at all, got two timeouts out

of four requests.

According to Firebug's netpanel, this took 40s to load on one request,

ending with a timeout:

http://ui-dev.jquery.com/themeroller/images/themeGallery/theme_90_ui_light.png

There is an image that results in a 404:

http://static.jquery.com/ui/themeroller/app_css/images/ui-bg_glass_55_fbf9ee_1x400.png

Referer is http://static.jquery.com/ui/themeroller/app_css/app_screen.css

Switching preset themes works, but can take a long time, mostly on images.