Check this website using any version of Internet Explorer: english-by-phone.com.ua. The file automatically download instead of showing the webiste. If you add /[url removed, login to view] at the end of the URL, the website will show properly.
I know that the problem is due to a bad configuration of the .htaccess file.
...I need help to fix it! I would prefer that somebody show me step-by-step or through TeamViewer how to fix it.