When updating to a new bios version, my system was corrupted and i sent it in to toshiba. Upon return, the computer worked perfectly except the brighness did not change. From 1 to 8, the only brightness that worked properly was 4. All of the others were maximum brighness. I figured it could be another bios issue. I recently saw there was a new version of the bios. Change log aside, would just the fact that im updating to a clean bios possibly fix this brightness issue?