For me Interent Explorer is one of the first nuisance browsers. The most annoying thing to note about ie6 is that when I went through the analytics for gravytrain limited clients there was pretty much a 60/40 split between  IE 6 and IE7 users. Even this fact would not be annoying if IE6 and 7 didn't render HTML differently!!! So this is a good example of what happens when 1. Browsers don't comply to current web standards. 2. Browser versions are released without proper testing. Another annoying feature of IE 6 is that it wont support PNG's without a hack. My advice is if you know anyone who uses IE6 go on there machine when they're not looking and renove it!