I have an HL-DT-ST DVDRAM GMA-4020B dvd 2x drive. I have 4x disc that i need firmware for. I downloaded the firmware (A109) but when i go to run the exe of screen pops up for a second then goes away and nothing else happends. is this it? is there something else i should do? if it is will i be able to use the 4x disc without any problem?