I have a combobox set to list (that means it acts as only a dropdown, not an edit control), and I have added 3 items to it, but when I click the combo box to show the drop down list, all I see is a small black line appear right below the combo box, and no list!

What do I have to do to fix this?

I figured other people had encountered this issue before, so I didn't bother posting any code. I have a wrapper class for combo boxes, so it would look a bit messy if I posted it. Nevertheless, if you need code, please request it!