Reply to Cant get into bootloader mode...

title says it all... cant seem to get my mf pro bm into booatloader mode. old updater says "the disk image can not be opened", and the new updater just gets held up at "putting midifighter into bootloader mode..."

no idea what firmware version im running..Ive tried holding the four corners with no luck. is my only option taking it apart and manually putting it into bootloader mode with the red buttons ive read about?... then what do i do?

edit: macbook pro 10.6.8 osx