Build command, Build window crash

Hello I am experiencing a problem with most recent version of sublime 2. My build system (nmake) used to work just fine with previous version, but now it sometimes works and sometimes does not. When it does not work, it opens an empty dockedbuild window at the bottom, but does not show any build steps ~ text, errors etc. I know build is going on, just text is not shown. Also, when text is not shown and I click in a window with my mouse, sublime crashes. When build is going and text is shown and I click, everything is fine.