Error message.

Carlson 2013 w/Embedded ACAD
Today I get an error message box when I open a drawing:
PROGRAM ERRORS WERE DETECTED.
RECOMMEND THAT YOU SAVE YOUR WORK AND RESTART THE PROGRAM.
Any ideas? suggestions?
Today I get an error message box when I open a drawing:
PROGRAM ERRORS WERE DETECTED.
RECOMMEND THAT YOU SAVE YOUR WORK AND RESTART THE PROGRAM.
Any ideas? suggestions?