Editable ListGrid focus on cell

We have a Editable List Grid with the following settings:

Code:

getGrid().setCanEdit(true);

getGrid().setAutoSaveEdits(false);

getGrid().setModalEditing(false);

getGrid().setSaveByCell(false);

getGrid().setEditOnFocus(false);

getGrid().setEditByCell(false);

getGrid().setEditEvent(ListGridEditEvent.CLICK);

So if you click on a record the record gets editable.

Now when you try to enter something in a normal cell. You have to doubleclick the cell to get a focus although it is already in editable state.

I also tried with this setting:

Code:

getGrid().setEditOnFocus(true);

This happens in Chrome and Firefox.
In IE you only have to click in the cell once and you can edit it.

Am I missing some setting on the Grid?

SmartGWT 4.0
SmartClient Version: v9.0_2013-07-03/LGPL Development Only (built 2013-07-03)