Suddenly my Vaio FE41S screen showing vertical dotted red lines and then my laptop refused to boot into normal mode with nvidia drivers and showed blue screen with error page default in non paged area. i can boot into safe mode and if i remove nvidia drivers .. i can boot into normal mode with standard VGA drivers . However my screen still shows red vertical dotted lines in safe mode and while booting also. . my laptop refuses to start and shows blue screen while with nvidia drivers. It seems like hardware failures esp . video card or lcd screen or ccfl lamp . Can some one help me find out how to determine issue / problems and possible resolution .