We'll create fresh WordPress site with WP IE Compatibility Checker installed. You have 20 minutes to test the plugin after that site we'll be deleted.
WordPress plugin that tell visitors to turn of IE compatibility mode if enabled.
Check if IE compatibility mode is enabled.
Write a custom popup text.
Select on what page types you want to enable popup. Example: only on front page or on all pages.
Select if you want visitors to be able to disable the popup for future visits.
Debug mode, to allowe the popup be displayed always, in any browser.
Stay tuned as it possibly will get updated with new features.