ubun2

To the eclipse launcher, add this line:
export GDK_NATIVE_WINDOWS=1
 
Of course, this assumes you have an .sh launcher that your are executing.  If not, then create one, and point your menu launcher to the new script.  There is probably also a way to add this permanently to your environment, but I haven't found it (for instance, editing .bashrc doesn't work, it only effects when you run bash).