blue screen then black screen on Windows 7

[gmjohn]

Hi I hope you can help me. I installed some security camera software to my Windows 7 Home Premium desktop. The cameras were coming in fine for the first day, the second day my computer shut down by itself, I only had to login this time and everything loaded fine. The next day it showed the blue screen, and I didn't even think to write down the code. I turned the tower off and back on and windows loaded fine, I opened the cameras and it shut itself back down and to the blue screen. I was going to try to restart it in safe mode but when I turned it off and back on the screen was black. I cannot get it to the safe mode or to do a system recovery, there is no mouse pointer on screen and it didn't bleep. I can hear that it is running but it does nothing. Is there anything I can do to save it? It is a HP P6774y running Windows 7 Home Premium. Any help would be greatly appreciated.
Mary

[Murf]

Are the camera's unplugged, before trying to reboot?

These are USB camera's I take it? Or are the camera's wireless? Need more info?

[gmjohn]

I'm sorry, no the cameras are wireless, the program I use to view them remotely is called "Blue Iris" which I also have running on another computer that I view remotely. Everything is fine on that computer. I can also view the cams remotely on my cell phone with no problems.

[gmjohn]

I may not have explained that right. I can view the cameras on my laptop and cell phone with no problems, but my desktop will turn on but not go past the black screen.

[spike2me]

Check the connections from the monitor to the computer.
Are you using a separate Video card lower in the case? Or are you using the onboard VGA? If you are using a video card, and you have the onboard VGA, remove the card and use the VGA port to plug your monitor into.

[juliaroberts]

VGA cable will be the problem. check that and replace it.

[gmjohn]

I tried turning the cable around and plugging the monitor end into the tower and vice versa. It turned on okkay. So I'm off to get a new VGA cord. Thank and would this be what caused it to shut down to the blue screen originally?