Actually, there is a quick-brace setting, but I can't find it in the UI for C/C++. Having it turned off would give the results you're seeing.
While I try to figure out what happened to the UI for it, you can try this: Save off the attached macro file, quickbrace.e, open it up in slickedit, and then bring up the command prompt, and run "load". That should make sure quick-brace is enabled in your configuration. See if it works after that.