Unable to load jQuery in IE8 + Selenium

My Setup

IE8, HTTPS, Windows 7, Sele开发者_JS百科nium 1.0, jQuery 1.4.2

I use addLocationStrategy that uses jquery CSS selectors. This works fine up to IE7. In IE8, jQuery is not loading. However, this issue is inconsistent. I dont why, sometimes this works, sometimes wont.

selenium.getEval("jQuery;")

returns null when this addLocationStrategy wont working.

Any one faced this issue? Any Ideas?