I am having exactly the same problem but mine is worse.
In firefox its OK
www.washingtonpools.ca/online
I have completly emptied my store.
No products
No Banners
No nothing
I have been working hard on getting it right but am running out of ideas
I am starting to wonder is IE7 is causing problems
I am using a shared SSL also
Did you have to mirror your site in a SSL dir



