fixed do_driver_hacks so that it works in MG 2.6.7 (only needed for DR2) and...
fixed do_driver_hacks so that it works in MG 2.6.7 (only needed for DR2) and cleaned up, also cleaned up do_DR1_hacks
fixed do_driver_hacks so that it works in MG 2.6.7 (only needed for DR2) and cleaned up, also cleaned up do_DR1_hacks