Acer/ travelmate5730
Screen defect

I, have recently purchased a acer travelmate 5730 (sl.no. LXTQ20C004838149A0 MODEL.N0 .MS2231) but now there is a display problem. When i turn on my system instead of a normal boot screen a white screen appears with colored vertical lines, the os runs normally behind the screen, nothing is visible. When i restart my system it becomes normal.

Kindly suggest me the solution for it as soon as possible.