It's really annoying and it only happens in my recently updated Ubuntu Edgy ... with Firefox 2.0 (ie, it only happens in firefox 2.0 for ubuntu edgy)
I have no idea whether its something i did wrong with my Avatar adjustments to the style.css or whether "desmond" is just forcing me to take an eyetest.
It's annoying.
oh yeah...if you haven't noticed i am running 0.80 :)