Whoohoo http://www.microsoft.com/silverlight/resources/installationfiles.aspx?v=2.0 Unfortunately it doesn't come with a commercial go-live license (although you can try and apply for one).

While writing an Ajax app that was supposed to collapse rows I came across this age old IE bug where the text on the cells I was laying out had relative positioning but were not cropped by the overflo

I haven't seen many performance problems but if I do, this looks like a useful tip: http://blogs.msdn.com/seema/archive/2007/10/07/perf-debugging-tips-enableredrawregions-a-performance-bug-in-videobru