I have a P3 here at work with 512MB RAM
It seems as though I can load only so mnay partial cui files then it crashes.
I had a fatal crash this morning and I could not re start AutoCAD
I then removed my acad.cui file from its directory then AutoCAD started right up.
After it started, I had to ditch a partil cui file, I then put the acad.cui back and it was OK
Luckily we are gettign new machines this week here at work.