I had a problem when I installed 2.0.2 - when sending an image from the image uploader to the editor with "use original" it sent the thumbnail in IE. Firefox worked properly and sent the original. I managed to find a fix here that got it to work in IE.
I have just done a new install of 2.0.4 and the same problem still exists - when viewing the HTML in the editor is has height="96" in IE. Still works properly in FF. In this case the user is on a Mac and uses Netscape so *hopefully* it is going to work for her there.
I would like to upgrade the 2.0.2 install - but unfortunately I did not write down what I changed (it was in the wp-admin\inline-uploading.php file) and I have been searching and searching the forum and I cannot find the original post that has the solution. That user does use IE and does upload images so I cannot upgrade her unless I can get the full size images working properly in IE.
I have seen several posts about this problem, but as others have noted, there doesn't seem to be a definitive solution. I think the one I found before had to do with just not sending a height. Any ideas???