I had trouble adding more than one item - eventually got two there but couldn't get the third. I've tried "Continue Shopping" then Refresh many times over, but the third item won't arrive in the Shopping Cart.
According to the statistics on my various sites, which I double checked before making this post: between 38% and 39% of visitors use something besides IE when visiting MY sites.
I would HATE to be stuck with a shopping cart that required IE.
ESPECIALLY since there are places, like where I work, where using IE is completely banned because of all the security problems. That makes some 1,900 people here that never use IE during the day. (What you do in the privacy of your home is YOUR business.)
You need to get that fixed. You are losing business.