-do a graphical setup, choosing all defaults (gnome, auto partition, your usual timezone etc.) -when you get the X setup screen choose use graphical login and customise -choose the modes which you want to use, don test it -press next -you're now in the ready to install screen -choose back because you forgot to test the custom setup -now the mode selection screen only shows the modes you selected before.
*** This bug has been marked as a duplicate of 6128 ***