I've not blogged about the issues (I don't understand them well enough yet). Anything to do with calculating and manipulating the dimensions of elements (e.g. d

I've not blogged about the issues (I don't understand them well enough yet). Anything to do with calculating and manipulating the dimensions of elements (e.g. divs with fixed sizes) seems to be awful. (I'm getting something like 0.1s per call to jQuery's .offset() and .outerWidth() methods.) And switching to IE10 mode these problems disappear like magic.