I have a button on my page with css border-radius and behavior: url(PIE.htc)

That seems to be working fine.

However, I also have a line of JQuery (1.4.4) javascript code like this:


When this executes, it fails inside JQuery. It appears that PIE.htc is adding something to the DOM that JQuery does not expect.

Please advise!

When you say "it fails inside jQuery", what exactly happens?

PIE does add some elements to the DOM, mostly VML elements within an outer css3-container element. I don't know how jQuery's selector engine handles those elements being present but it seems like it should ignore them.