There is a good chance that you may have had another program battling Bryce over the use of your graphics card. Another good chance that you did not loose your presets until you reloaded. A hard reboot after a 3 minute shutdown may have brought the presets back. Think back and see if you added any new software that may demand high use of the graphics card. If so, make sure it isn't running when you use bryce or poser. Sometimes Poser will do this to Bryce if it is running at the same time. More memory and allocated hard disk space to the graphics card may help also. I had a similar problem, but did not loose any presets. I found out that my graphics card tv-tuner software and hardware were demanding to much from the system. Even though the tv-tuner was off. Once I completely shut it off, everything came back to normal. I hope this helps someone. Check other programs before reloading and make sure to do a hard reboot, not just a restart.