To the left of the display appears black

My 19-inch widescreen display on the left by about 5 cm wide and, using the Onda A78GT, has seen a re-inserted after the restoration of the line, whether to re-plug or re-loaded line drive did not Effect, and only 1440 * 900 resolution under such circumstances only, all other full screen resolution, driven by a few re-tried by the end of the Onda is the official network of the pack this card drive.

auto ah look like./ display normal circumstances