Important Stuff:
GPU - GEForce GTX 780
Motherboard - MSI B85M-E45
CPU - Intel i5 4590
Monitor - HP 2011xi
Recently built my own PC (not literally. I bought the parts but had a friend put it together who's majoring in IT Tech or something and he's build (literally) dozen's of PC's before). When I connect my monitor to the DV-I port on the GPU when it's plugged in, connected, etc, my monitor says it gets no signal. When I plug it into the DV-I port on the Mobo when the graphics card is disconnected, it gets the signal just fine. (I tested this to make sure my monitor and/or cables weren't damaged.)
The real issue being that the set-up worked perfectly for about one day. The computer was built, everything was assembled and working perfectly. I shut the PC down for the night, turned it back on the next morning and suddenly I get no video.
The added challenge comes in now. My knowledge of computers isn't entirely all that large. I know enough to be able to answer most questions, but there are some things I might not understand.
Help is greatly appreciated.