Well I got a pretty decent ( I hope) Opwer supplyA BFG Tech PSU 800 watt, JUST s oI know I'm not under powered lol. And if I ever get this comp working was going to add maybe another video card and what not. Anyways, changed my monitor, had another laying about. But alas, I'm getting the "Check signal" Message on my comp screen, so for some reason my comp still isnt working. Like I said, I've gotten it to work before, got it to go all the way to Windows Installation. But, when I opened my pretty little package from Microsoft, no activation key..

.. I have NEVER been so angry in my life. And now, it won't go back to going on the screen. I 've tried refreshing the CMOS to no success. Could the motherboard be fried? Or is it my graphics card? Or if i can some how get it back to Windows Installation screen and i finish installation, will it be ok? Thank you in advance any one who is willing to help me.