Web browser considerations
Ever since the days of Netscape Navigator and well, any version of Internet Explorer, dealing with web browsers and their different acceptances of standards, bugs, and quirks has been a challenge.
If you've ever done any sort of web development or design work, you know how important it is to test your sites in multiple browsers. Sometimes things look or even behave or function differently, usually not for the better. Well, the same goes in GIS. Got something in an application that you think should look right, but it just doesn't? Try another browser and see what you get.