Ajax.ActionLink not working in Internet Explorer 10

I have searched and searched and tested and tested... and I cannot get IE10 to dump a partial page into a div.  It's simple code and FF & Chrome each do it flawlessly.  I have done ctrl + F5, and a handful of other supposed solutions (no-cache, POST instead of GET, etc.), all to no avail.

View:

<div id="user-component-wrapper"></div>

...
        
<button class="next">
            @Ajax.ActionLink("NEXT >>", "LoadTest", "Home", new AjaxOptions
                 {
                     HttpMethod = "GET",
                     InsertionMode = InsertionMode.Replace,
                     UpdateTargetId = "user-component-wrapper"
                 })</button>

Controller:

        public PartialViewResult LoadTest()
        {
            return PartialView("_Test");
        }

Can anyone please help with this - it is driving me batty...