Hi Christopher, The bios has been upgraded to the latest one available, v2.20 from Tobshiba, and the problem with the video driver continues. In fact, today it seems to be very frequent, more than with the old bios, though only in Firefox so far. I believe I followed your instructions correctly in terms of updating the file.  If anything else is needed, please let me know. Thanks, Jonathan From: Christopher M. Penalver