I abandoned IE long time ago, I don't care about it. My IE visitors are around 12% every month, and it is decreasing. Using Compatibility mode I could view that missing product, that's why from the very beginning I said "there is no issue".
But, before doing this I will read articles on Internet about this issue. Seeing it in this shopping cart, I do recommend putting a meta tag there for compatibility (you can check browser version, if IE insert the meta tag). Just think about to this issue: not all of your products are visible to the customer if the browser is IE. Bad for business.
PS - you can buy "Pop-Up Anywhere" module and stress your visitors giving up Internet Explorer. You can give them a discount too or free shipping
