Mousing over the Slashdot logo in the header of the main or article pages causes the logo to blank out to the background teal and then flash back to the logo again.
Each time it flickers, the status bar briefly says "downloading picture http://images.slashdot.org/logo.png" (not verbatim).
Running IE6 SP1 on Win2k. Do not recall seeing this ever before. Currently unable to verify on other systems/browsers.
Magic disappearing logo!