I've been dealing with a ton of IE / WebInterface issues lately, so I'm making this note to myself.

Microsoft Internet Explorer 8 - Citrix Known Issues
https://support.citrix.com/article/CTX120856

Microsoft Internet Explorer 9 - Citrix Known Issues
http://support.citrix.com/article/CTX129444

Microsoft Internet Explorer 10 - Citrix Known Issues
http://support.citrix.com/article/CTX137799

Microsoft Internet Explorer 11 - Citrix Known Issues
http://support.citrix.com/article/CTX139939