RubyMine can't remember my ruby sdk

I'm running the latest RubyMine with a 32-bit 1.7 jdk and 1.9.2 via rvm.

Every time I start it, it forgets where I told it to find ruby (rvm).  Once I choose it from the list and apply, everything looks great (list of gems).  Exit and restart, RubyMine forgot what I told it and complains.  Tiresome.