I've also had several problems with compilers and IDE. Recent example: Visual C++ detects that my computer has a Japanese environment and switches its messages to Japanese. Qt Creator takes these messages and displays them in its output box, in the process borking them completely (□□□□ etc.), even though its own interface is in Japanese as well. Now I couldn't find a switch to make the compiler output English when called on the command line, so I eventually just used VC++ as the main IDE.

A lot of programs require command-line switches on every invocation to change the language if it's not the same as your OS locale.