IE 11 Login Issue

I'm currently evaluating SpiraTest together with a group of users to determine if it will work for our organisation - a large retailer. We're having issues logging into SpiraTest using Internet Explorer 11 on Windows 7. All other browsers seem to work perfectly, however, when using IE 11, it seems to jump right back to the Login page without even showing an error, it's like it refreshes itself rather than doing a page submit. We initially thought that it was a compatibility view issue because all of our local domain websites are set to compatibility view, so we excluded the SpiraTest website and it's still an issue.

Has anyone else experienced this? I tried searching the Knowledge Base and the forums and no one seems to have experienced this, so I am hoping there is something that we would just need to configure to get this to work.

Regards

Ravi

PS. I know that the ideal solution would be to just tell people to stop using IE - but we have many business users who are quite content with using this browser, so that is not an option.