Can't upload Banner using IE9

I'm signed up on SmugMug with a trial account. I plan on purchasing a pro account for the extra features.

One issue I've run into is when trying to upload a custom banner using IE9

I go into easy customizer
Select Header
Select custom banner drop down
select choose image
The choose image dialog box opens
I select Browse under "have a new image to add?"
Find the image on my local machine
Select that image
check the address bar in the dialog box, it's correct and shows the correct image and file path
I then select upload
NOTHING HAPPENS

I've tried this using IE9 32/64 bit, same results.
I've tried this on my home PC and 2 different laptops, same results.
All machines are running Win7 64 bit Home Premium with SP1 installed.

If I use Google Chrome, it works just fine and I can upload the image I selected. So I know it's not my machines or a network issue but a compatibility issue with IE9.

My site is www.biglensphotography.com

Thanks in advance,
Mike Rosa
Xnavyguy