Ensuring images are okay is slowing the site down too much.  Getting header information for each image, each time a page is loaded, seemed like a really good idea at the time, but just proved too costly in terms of site performance.

Consequently, this feature has been moved to the posting section of the site.  Whenever a forum post, guestbook entry, or blog entry is made, embedded images are checked for format and size.

The URL for the too-big image in the previous blog entry has been purposefully damaged to stop it disrupting the layout of the page.