User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9a1) Gecko/20050921 Firefox/1.6a1 Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9a1) Gecko/20050921 Firefox/1.6a1 If you look at http://www.theregister.co.uk/, certain images (such as the title image, US edition image and the RSS feed image) appear just as the alt text ("The Register", "US Edition" and "RSS Feeds" respectively). The images appear properly if you move the mouse over the alt text. Reproducible: Always Steps to Reproduce: 1. Got to http://www.theregister.co.uk/ 2. Look at the left-had side menu 3. Move your mouse over the text "US Edition" or "RSS Feeds" Actual Results: Image appears after you've moved your mouse over the alt text Expected Results: Image should have been loaded correctly when the page is loaded

Forgot to say that I don't remember seeing this on Sunday nightly.

Almost certainly a duplicate of bug 309076. (Reporter, please confirm that you have AdBlock installed).

Yes, it does appear to be Adblock. *** This bug has been marked as a duplicate of 309076 ***