I have the same problem. I found that IE would not display the product pages at all when set to “Scale & Crop” – but now when set to “Scale to fit” I have some images that are not scaling; the thumbnail box is resizing, and the main product image is actually cropped – see here.
OK so IE doesnt like thumbnails set to “Scale & Crop”.
In the rendered html, can see that the height is set to a value, but Width doesn’t have a value, just says Width. Chrome works ok though.
Hmm, seems to be an IE thing. It works fine in Chrome. Im using IE10.