Using both Firefox 3.6 and Opera 10.10 on Linux (Slackware 64 13.0) the right side of the "Launch" box is chopped off. In opera I can see that the button is called "Find" (or, at least, it starts with "Find" but in firefox I couldn't see any text at all.
So far I haven't seen any other similar problems with the web site.
First of all, thanks for the feedback.
We are actually testing with the following browsers:
Firefox 5 and above
IE 7 and above
Safari 4 and above