|Original Message (ID '46255') By Forum Moderator:|
|This problem usually occurs because a Mathematica startup file is out-dated or corrupted.
You can usually resolve this problem by clean-starting Mathematica, instructions for which can be found at:
Windows: Control+Shift keys
Macintosh: Options+Shift keys
and start Mathematica.
Keep the keys held down until Mathematica opens.
Linux: start Mathematica with