One of our citrix home workers keeps getting a problem on their home machine trying to access citrix access gateway with their IE 8 browser. they can login fine with domain credentials, but then there browser freezes on the page : <removed>Citrix/CAG/auth/silentDetection.aspx
In the bottom left of the browser is the yellow exclamation mark error symbol which if you click states:
"Errors on this webpage might cause it to work incorrectly"
"null" is null or not an object