Header fade gives cross-slide JS Error ("Exception thrown and not caught")

Hi all,

I have a site (Wordpress 3.0.1) that uses ATA 3.5.3's rotating and fading header image feature.

When only the rotation part is used, there are no errors in FF, Chrome, or IE6/7/8. But the moment I turn on fading, IE (and IE only) gives the following error three times:

Line: 38
Error: Exception thrown and not caught

I can see the image fade to the next one, but just before it completes, the above errors happen.

I tracked the error down to the cross-slide.js abort function. Line 38 is:

throw format.apply(null, arguments);

Does anyone have an idea what's going on? Thanks in advance for the help!