Probably neither. Things like that tend to depend on your embouchure and how much air you are using. Your friend probably just has a slightly looser embouchure, but you should be able to get any note on any flute. Keep trying!
Just because your graphics card is very good does not mean that it could not have problems. Try uninstalling, reinstalling, and updating your graphics card drivers. Scan memory for any...
First off, you should just be able to "come out" to your friends yet again. That'd be step one, and probably the most difficult of them all. The problem with...
Have you considered upgrading your Java version? In many cases, the reason certain browsers work is due to its compatibility with your Java version. You should be able to update...
You have to think carefully before ending this friendship. And ask yourself about your life without your best friend one day. Happier? Or worse? You have to explain your feelings...