Losing comboBox selection in JTable

I have a JTable where one column consists of comboBoxes. It is possible to add and remove rows from this table using the associated buttons.
Unfortunately if I have made a choice from a comboBox, yet not selected another cell in the table, then I use the 'add' button to add a new row, I lose the selection just made in the comboBox.
If I first select another cell in the table this is not a problem and it works fine.
Any help much appreciated....

thanks for that, but I'm afraid it was no help.
I'm using Java 1.1.7 and the getCellEditor(int, int) method doesn't exist. doing the same with getCellEditor() doesn't produce the required results.
The comboBoxModel is updated when a new selection is made, but the cellEditor isn't updated until you click on another location in the table. Unfortunately I don't know how it goes about doing this, so I can't imitate it in my 'add' method

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Losing comboBox selection in JTable

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