wxGrid refresh

Hi,
i'm working on a wxGrid.
i've discovered a possible error, can anybody please try it and maybe find a workaround?
here the specs:
wxGrid, TableBase.
when i click on a cell to edit, if the grid has no horizontal scrollbar the only cells refreshed(before editing) are those on the same row.
BUT when the grid has no horizontal scrollbar the whole cells are refreshed.
well, if you have a large visible cells array (say 30 row x 9 cols) it takes too much and the user can feel a delay in typing the first char.

anybody got this error?

i've tried with Begin/EndBatch but with no luck.

thank you

Max

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