Interactive Flat Panelsiwb not working with extended desktop

it cannot be a difference in graphics card because they are identical laptops toshiba c660 i did yes we have done through testing on this to no sucess.  This is using a laptop to project from so we do not have an external VGA splitter.

Ps i dont want split the image.  I wan the laptops image to be extended on to the IWB.

Thanks Kallum