I am unsure if I am in the right place, but I am frustrated beyond belief.  I am really hoping that someone can assist me. 
  
I own a H.264 Network DVR (4 channel).  This system has worked beautifully until one day I was really angry with my laptop and pulled the plug out of the surge protector.  At the same time my monitor for the H.264 goes black.  I thought I accidentally unplugged something so I followed every single wire (including the ones from the cameras) and everything was secure. 
  
I then thought "maybe it is the monitor", so I unplugged the monitor and hooked it up to a computer and it works fine.  I still went ahead and took a back up monitor (that I already know works fine with the computer) and tried it with the DVR and that screen goes black.  So, it isn't the monitors. 
  
I go ahead and turn off the power and unscrew the case of the DVR to verify that all connections are still secure (and they are secure).   
  
I have turned on the DVR and I hear the boot up process, and everything sounds fine, but I can't get a picture.  Now, I can't guarantee it is fine because I can't see anything.  I just go with what I know it is supposed to sound like when I boot it up. 
  
I am scratching my head on this and can use some help.  Please!?!?!?