Yesterday evening I was doing some DHTML. Nothing fancy just basic stuff. I normally use Firefox+WebDeveloper to develop with, then Konqueror and Opera for testing. IE is so crap I don't even bother with it, until I've got it all working in the better browsers first. Yesterday was a very frustrating, because I failed to read the error message that was staring me in the face! As soon as I bothered to read the error message it was obvious what I had done wrong, and trivial to fix.
Now it's all working, I'll see what horrible things IE does with it... While IE is the dominant browser with 60-80% market share in the target demographic, it's no use to develop with, and more importantly it doesn't run directly on Linux which is my desktop and server OS.