Hi Ken,

Ok... so i am sorry to tell you this problem is ongoing.The computer in my original post still was having sproadic upload issue. The Upload button looked like it was clickable, yet it didnt react when clicked. So we went to your test site again:

http://www.ajaxuploader.com/Demo/simple-upload.aspx

We found that in Vista 32 bit with IE9, your upload control worked well when Browser Mode is IE9 and Docment mode is Quirks, but when we switch document mode to IE9, we get the same issue as on our site... the upload button looks clickable, but is not.

On our own site we now have found that setting (in our HTML header)...  <meta http-equiv="X-UA-Compatible" content ="IE=7"/> works for us, setting it to IE=9 does not work (same behavior as before). The strange thing is that our Win 7 machines with IE9 have not shown this issue before. Do you have any thoughts on this?

thanks!

James