I thought Protovis might work on IE 7 and 8, or at least on IE 9... but to my surprise, I tried it on all 3 and it doesn\'t work on any (for those example pages... is it a tempo
My google tells me you're not alone: http://code.google.com/p/protovis-js/issues/detail?id=15. From here: http://code.google.com/p/protovis-js/updates/list