I've recently started using jsMath and if IE tried to use jsMath i get this popup error
"in order for jsMath to be able to load the additional components that it may need, the jsMath.Js file must be loaded from a server in the same domain of the page that contains it. Because that is not the case of this page the mathematics displayed here may not appear correctly."
Then jsMath appears to fail to open a majority of the required files leaving an inoperable control panel and no maths translation.
(This page has a maths equation test)
Please contact me if you require any more information