Internet Explorer 8 is definitely a work in progress. It is not very compatible with a large majority of AJAX enabled websites, including this WordPress blog. I know that this is something that will see a great deal of attention paid to it. But then again, it wouldn’t be the first time Microsoft has forced web developers to adapt to their idiocyncracies.
In the mean time, I’ve got Firefox 3 loaded right along side Internet Explorer 8 to make sure that I can still edit posts and do other things which appear not to work in IE 8.