There is a gentleman in my office who is having a problem with text wrapping
in a single cell. When he opens up a new Excel workbook and types in a
sentence that goes past the cell width, the text appears on the screen
spanning columns (as you would expect). When he formats the cell and chooses
the Wrap Text option, the text disappears. When he highlights that cell the
text displays in the formula bar.

Adding an Alt-Enter to the middle or the end of the sentence makes no
difference and changing the Text Alignment makes no difference.

He has sent the file to me and my excel (both are 2003 SP2) shows the text
as expected.

We have reinstalled Office and this problem still occurs.