Gmail and Internet explorer

I don't get it.. I thought gmail was down with I.E. I remember it working with Internet explorer now every time I try accessing my gmail account from internet explorer I'm prompted to download some unknown format document from google..

See screen shot to the left [click image for large display]

Yah that's what I'm seeing, I'm not sure as to why, I've got a late version of internet explorer and I'm pretty sure I used to use internet explorer with gmail before. Am I alone in this or are there others?