I built a PC for my mom and to test it out I unplugged the monitor from my PC to use for hers. Computer booted up fine but the monitor was getting no signal. I reseated the RAM and such but still no signal. Decided to give up on it for the night and plugged the monitor back into my PC but now the monitor isn't getting a signal there either. I'm typing this from my laptop, which I tried plugging into the monitor and... it worked. My laptop displayed to the monitor just fine. What does this mean!? How is my monitor not getting a signal from both of my desktops yet my laptop is able to give the monitor a signal? Any ideas on how to fix this or should I just pull my hair out and start bashing things with a hammer?