If you've been viewing this site with Firefox 1.0.x, then you may have noticed the flickering of the Google Adsense ads when mousing over links on the page. This is a bug in Firefox 1.0.x, and there are various HTML + CSS work-arounds that I could implement to prevent this for you. Instead, I recommend that you upgrade your browser to the recently-release Firefox 1.5, which has fixed this bug.

http://www.mozilla.com/firefox/