Combobox items invisible when editmode is popup

[Cheryl]

Hi there

I have a grid and one of the fields is a combobox.  There are only 5 items and the items to display are not datadriven.

If the editmode = Inplace, then I can click on the field and it shows the possible items in a list as you'd expect.

But if the editmode = Popup, then clicking on the field does not show the possible items and I have to use the up and down arrows to scroll through the items.

Any ideas?

 

Thanks