Firefox 3.0 using v0.673 of Nodiatis. I am using AdBlockPlus, which I think is why I can see these. The [Block] box for AdBlockPlus flashes every few seconds (when an action happens)
Currently I also have had ding.swf four times (I logged in to four dings, also) and Message.swf once as someone spoke.
See:
ImageShack - Hosting :: nodiatisfs7.gif
At the top left, there is a 1x11 grey strip. Not an annoyance, but not meant the be there I think.