I have just installed Bryce 3D rev 3.1 on my new computer which runs Windows XP. Everything seems to work ok except the Create.. Edit and Sky/Fog dropdown menu`s wont stay open, they just flash on then off when you click on the small arrow,making it impossible to make a selection....it renders ok as i have opened a past scene and rendered that with no problems only difference being that it took a fraction of the time.......does anyone have any ideas on how to cure this problem