i got an hp dv6809wm, works great except it has to be plugged in or bt will stop at the point of trying to detect a floppy drive.
well what it actually does it go to a black screen, i initially thought my laptop wasnt compatible. id always try and run it unplugged. id do what you suggested hit the power button once and it looked like it would work for a second then get to the point of detecting the floppy.
did your friend ever figure out a workaround? i wonder if installing bt or using vmware would work better than a boot disc?
I have the same laptop. Boot with BT3 Graphics Mode (Vesa KDE) The screen will go black. Hit the power button and watch it boot.