Hello, I have a problem for not knowing and getting where they do not call me, I have an old extensive 5620g acer with Mobility Radeon HD 2400 XT graphics, because I was given to try one of the bios that are here on the page, and now only It is seen by an external monitor, the laptop screen does not turn on even with its own bios .... I put the original bios on the card again and it remains the same ... will it have a solution ?, Thank you.