I had no crashes so far, Virgo, just these strange freezes with trolls, when I came back to kill them instead of finishing them off for the first time.
@Raven: No clue, how long you will take - I finished all quests in Hommlet. Yes, those frogs near the Moathouse are not dangerous - wait, until you meet the Bephemot Bullfrog north of Nulb <img src="/ubbthreads/images/graemlins/winkwink.gif" alt="" />. He has CR 6.