After an upgrade of a NetScaler from 9.3 to NetScaler X (NetScaler 10) I wasn’t able to manage it from Internet Explorer 9 (IE9). All you would see is a grey bar on top and a white screen
I’’ve only been able to test this with a non-default (nsroot) username .
This is a known problem at Citrix, but unfortunately it isn’t solved (yet). Enabling or disabling the compatibility mode as described on this thread at Citrix forums didn’t solve the problem for a compete 100%. The ‘best’ workaround is to set the browser mode to Internet Explorer 8.