David;
I assume that you recall my previous message re an ACAD INTERNAL ERROR. I
beleive I have found my problem and thought I would mention the solution to
you in case someone has the same problem. PCTOOLS V7.0 has a feature that,
when activated, provides a hard disc activity indicator light in the top
right corner of the monitor. Once I turned this feature off, I could not
reproduce the error message. It appears that this feature will not
peacefully coexist with AutoCAD. Thanks for your attention.
Adrian