My daughter has the Toshiba A305-S6916 it has 4 gigs of memory, a 320 gig hard drive. The laptop keeps restarting and she tried to re install vista but it also kept restarting. We bought a new seagate hard drive from Newegg but the laptop continues to restart but now the screen starts showing lines of different colors. Is there anything that I can do myself to save this laptop??