"Compatibility View" allows newer versions of Internet Explorer (7 and higher) display legacy HTML pages correctly.

This app has not been built using legacy HTML, however, your browser is still running with this mode turned on. You can avoid rendering issues by turning it off:

• Click the torn paper icon next to the address bar, if there's no icon then...
• Go to: Page > Compatibility View, and disable it, if option's greyed out then...
• Go to: Page > Compatibility View Settings, and uncheck the options that read: "Display intranet sites in Compatibility View" and "Display all websites in Compatibility View", if you still have rendering issues then...
• Go to: Tools > Developer Tools (You can also hit F12 key to open it), a bar will display at the bottom of your window. Find the "Browser Mode" and change it to your current browser version.