I have hotmail, and saw most of it white on black background too, but the letter written by Vaughan about the 2 years old amdusers.com, is on a box of it's own, and the text is dark blue on black background. Had to increase the screen brightess quite a bit to be able to see it.

check it out:
http://clientes.netvisao.pt/xx001711/newsletter.JPG