I think I might have taken care of your "jsMath failed to set up" problem. It turns out that MSIE was sometimes having trouble locating the image fonts, and that could result in this message. Try getting the latest release (3.1a) and see if that helps. Otherwise, I'm waiting for more information from you. FYI, this release also include an error code in the "jsMath failed" message that should help me to locate the problem, so if you continue to get the message, please let me know the code that it reports.