Can't select from combobox

[daveog]

Hi all,

I have the weirdest thing happening.

I have an unbound datagrid to which I have added a combobox column.
I populate the combobox each time I add a row BUT when I click to drop down the combobox list the items appear as expected but cannot be selected i.e. as soon as I move the mouse to select an item the list collapses!!
I can however select items by using the up/down arrows .. but this obviously does not display the list ... is this expected ... or am I missing something?

Any ideas? ....

Dave