I mentioned about bad sectors b/c some time ago I had a similar problem where one of the objects I was using got glitched somehow and would always generate an error during save, usually crashing Bryce in the process. Through process of elimination I figured what object it was. Further testing showed it was on an area of the hard drive with a bad sector. So the object got glitched.

Since hard drives do have an operational life of a few years, and they do get very hot, and it depends what material and special coatings cover the platters, I'm wondering if that's the problem. But I wouldn't be amazed if it was something like too many libraries opened or some program running that's generating conflict. I'm interested to know what the cause is.

--Death_at_Midnight