What IDE, language and platform is driving you to frustration? I'm a long-time emacs user, but I have found Intellij IDEA to be a wonderful tool for working in

What IDE, language and platform is driving you to frustration? I'm a long-time emacs user, but I have found Intellij IDEA to be a wonderful tool for working in java. Older versions were slow to start up and occasionally sluggish, but new versions on modern hardware are wonderful. I use netbeans for C++. I haven't found anything for Python that I like. (I find Eclipse unusable for anything.) If IDEA or Netbeans were taken away from me, I'd use emacs. Actually, I still spend a lot of time in emacs. I use the IDEs for writing new code, reading code, and running/debugging unit tests.