I have a English version of Windows 7 Home, but for personalization, I have set it to Polish.
I see weird behavior using this language, where some basic letters are substituted, like z=y, etc. There is a EN link in my taskbar where I can switch it English, or Polish (programming) both of which show the same correct letters.
2 problems: - In Polish (214) mode, lots of keys are mapped incorrectly - if I switch it back to English using the shortcut in taskbar, it automatically goes back to Polish (214) sometimes
At this point, I would rather it just didn't have any such options and stayed English.