Using “Format Cells” > “Numbers” > “User-defined” with the format code of ###-###-#### only results in “###” in the cell.
This error occurs with version 4.0.3.3 on Mac OS 10.8.
However, this works properly with version 3.6.4.3 on Mac OS 10.6.
Here is the error:
https://dl.dropboxusercontent.com/u/139720/lo.png
Any thoughts?