Running jQuery crashing on IE10/Win7

I am for the moment just including jQuery (1.9.1, but old 1.8.3 behaved the same way) in my ASP.net webpage (Site.Master file actually). Everything worked fine running under IE9/Win7-64 but ever since I upgraded to IE10 (still Win7-64), now when I run the webpage locally, selecting Internet Explorer and run from within Visual Studio, I hit an exception.