Combobox has no arrow, just a line on the right, what's wrong?

[Tomatoman]

I am trying to place a combobox in a spreadsheet (Excel 2002) but no down
arrow appears only a line on the right side of the box. I have linked a cell
and designated a range.

 

[Bob Phillips]

You have run some VBA code to delete shapes by any chance?

 

[Tomatoman]

Nope, tried the box on another sheet in the workbook and it works fine.