cannot read

[suwunk]

Check the server headers and see what Content-Type (MIME-type) header is returned using Firefox and the Live http Headers add-on. Compare this Content-Type to the Accept header in the browser request.

There are three most-likely possibilities: First, perhaps the server has not been configured to return the correct Content-Type along with the page. For example, the page is application/xhtml+xml but the content-type says it's text/html.

Second, maybe the page itself is encoded improperly -- possibly because it was written with a word processor (e.g. MS Word) instead of an HTML or text editor or a WYSIWYG Webpage editor, or because it was exported from one of these tools in the wrong format (something other than plain text using ISO-8859-1, UTF-8, or a similar standard character-set).

Third, it's possible the page got corrupted because it was uploaded using incorrect format settings in FTP or whatever program was used to put it on the server.

Read more: HTTP 406 Error on Vista with IE 7 HTML forum at WebmasterWorld

[Stoddard]

Any tips as to what you can do when you get an Internet Explorer error HTTP 406 ("cannot read this format")?