With the cell selected:
Format, Row, Autofit
(If this works be aware you can select several rows and autofit them all at the same time)
If it does not work then:
After you have set wrap text then:
Does the text display over the cell to the right or is it simply not visible? Please clear the contents of the cell on the right to perform the test.
With the cell selected try Format, Cells, Alignment what are all the settings please?
Gavin