Hi, Last night I noticed my computer had a blue screen with a windows box stating it was going into recovery mode. I allowed it to finish and upon restart it would not boot. It started booting but soon showed white and black vertical lines then just a black screen. I was able to see my mouse cursor. Since it was late I just turned it off and left it alone. Today I tried to boot and the same thing happened. I then tried to boot in Safe Mode and I was able to boot. I did a system restore to an earlier date and it completed successfully. After reboot the same white and black vertical lines and then just a black screen. I then tried to boot in Safe Mode and it would not. I left it for a few hours and then I was able to boot into Safe Mode again. From reading some of the forums, I suspect a fried video card or motherboard because I have an HP DV9543CL with NVIDIA GeForce 8600M GS and it has known issues. I'm just wondering if there is something I can do to verify it's a hardware problem and not software/malware related? Thank you, Colette