Maximum PC

I was on my PC and was thinking well its been easily 4 years since I have even touched any of my GameCube games so why not try some Zelda Wind Waker on my Wii U! Well I found out the Wii U really doesn't play GameCube games and my GameCube is somewhere in my closet and my brother has my Wii so... well guess forget playing and GC games... . I plugged the HDMI for my PC back into the input on my TV and well windows has crashed. This has never happened before on my PC. So I thought well maybe its something to do with the HDMI. When ever I play my PS3, 360 or Wii U I power off my Desktop. and one thing I found was when I unplug the HDMI from my TV(while my desktop is powered off), my back lit keyboard lights up. I have never had my PC crash and the one time I leave my PC running and swap the HDMI cable it crashes. seems very unlikely it was just random. Am hoping someone would know why its doing this. Thanks!

How does it crash? BSOD? Frozen? What?

Do you have your TV set for PC input? Look in the TV menu, I have it in mine and it is a Samsung 52 inch model.

Nasty

Hey! Sorry for taking so long to respond! Must have been a one in a billion chance because now its not doing it. Sorry to bother you! Thanks for your help!