I was able to access the login page
and analyze its meta tags. I noticed that the application forces Internet Explorer to act as IE 7, which might be causing the experienced misbehaviors. See the meta tag information below:
Please discuss with the developers of the application, how they can remove it or changed it, so that Internet Explorer uses the latest version. Otherwise testing against IE will not be consistent and your alternative would be to use Chrome or Firefox browsers.
I hope that the above information will help you with this scenario. Please do not hesitate to contact us again, if you need further assistance.