Mostly (actual) headaches and graphics head-scratching today, but the cursor trail bug is gone now. Going to pull back from the new screen refresh code a bit until some of the problems are sorted. As usual, there are problems on other computers that I can't knock off quickly on my own or even reproduce. People have written up some possible fixes and are looking at others, but I don't have a timeframe for this. (*)stopped designation cursor from leaving a trail when the minimap is updating (*)added an init option for partial screen refreshes (defaults to off) (*)fixed lockup for glassmaker moods where the glassmaker doesn't like glass