I downloaded the DMX tutorial by Rachel Andrew about creating CSS curved corners and it works fine, but only in IE 6 or7. When rendered in Firefox I keep getting a lower straight line along the bottom of the box.
Any solutions will be gratefully received.

If I am understanding: Normally you need to specify a height (in the css) especially if your using an image background. ie never seems to bother and makes boxes with backgrounds in grow to fit, convenient but not right. You need to tell the browser how high to make the box that contasins the curved back ground for fire fox to render it other wise you get a flat line (unless you have text in the box in which case it will grow to fit- but still might not be big enough to show the curve cleanly.

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