My computer is a Sony Vaio and I am using the window XP operating system. The problem is the monitor will stay black or turn blue if we get that far after booting up. The error message is UPNPFramework.exe error code OX7C918FEA referenced memory at OXOOOOOO10. I have no idea what this is. To get the monitor on I have to keep rebooting which I know isn't good for the computer. Also, to get the monitor working I have to unplug it after shutting down the computer, replug it in and then reboot. If the monitor comes on, I feel lucky because I can't tell you why it would work all of a sudden. I disconnected by camera dock from the system thinking that might help but it doesn't. We try to keep the computer on all the time now because if I shut it down completely, I will have trouble restarting it again. I don't know if this is a software problem or a hardware problem. Can you help?