Border-radius bug on in IE9

Question

Seeing that

elements render border/border-radius correctly, but any or that has a background, border

Answer 1

One solution for this is to use CurvyCorners, a javascript solution. It works all the way back to IE6, but struggles with gradiated backgrounds. If you are using a block coloured background however it will work fine, and has handled all border types I've thown at it so far. The website says you need to call it, but somehow I've found it seems to work simply by including the .js and using css3 border-radius attributes in the css.