Jason,

With IBO 4.8.7, I have a test application with a TIB_Combobox embedded in a
TIB_GRID. In windows xp it all works well, but the same application in
windows vista doesn't.

In windows vista, the dropdown of the TIB_Combobox doesn´t appears. I click
on the control but nothing happens.

I have to change it to TIB_ComboboxEnh that works well in vista.

As you are working in ibo version to codegear 2010, maybe it´s worth
checking this problem as well.

Thanks in advance,

Luiz