NEW!: Works in IE
Well, I wrote a spell checker. It's been tested and works on Mozilla 1.7, Mozilla Firefox 1.0.4, Safari 2.0, Camino 0.8 and Internet Explorer 6.0. Opera 8 seems to have a rendering bug which causes the dropdowns not to to be cleaned up when they should. Konqueror does strange things, and I'm not entirely sure why. I don't know if it works in anything else.