IE 8 problems; loading jquery causes a blank page

IE 8 problems; loading jquery causes a blank page

I'm currently using JQuery to generate a Datepicker for a web app I'm working on, and I've encountered a strange problem that occurs when I link to the jquery-1.4.2 core in IE 8.  When I open one of the pages that uses the datepicker, it visibly renders most of the document and then, when loading is complete, the entire page is replaced with a blank.  Refreshing causes the page to appear as normal, and the underlying html is visible in the debugger.

To give further background, the page is built in XSLT using an xhtml doctype for the output, though I'm specifying the output method as html rather than xml in order to avoid a bug in Firefox.  I've isolated the problem to my inclusion of the jquery core; when the line is commented out, the page loads without a hitch, but when the line is there, the page blanks upon the first load regardless of what I change.  I've tried a number of potential fixes--changing the xslt method to output xml, ensuring that the css is linked properly, and linking to the core hosted on google's servers, rather than my own local copy--but none of these have worked.  Changing the document mode to IE 8 in devtools makes the page display correctly on the first load, but I've been unable to force this in the page itself (probably because I'm using XSLT).  Oddly, I have a page that includes much of the same code, including the datepicker and the core import, albeit with significantly more information, and it loads fine every time (both pages default to IE 7 document mode, so IE isn't treating them differently).

Has anyone experienced similar problems and resolved them?  It seems like something is going weirdly in the jquery initialization code, but other than that, I'm at something of a loss.  Also, my apologies if this is in the wrong forum; the issue seems to be with the jquery core, rather than the ui Datepicker.