Hi, i've had my pre-built pc for a year now and everything has worked fine. i recently unplugged the monitor and pc for a few days to sort out my room. When i plugged everything back in, my monitor screen said HDMI no signal. Ive tried changing the input to vga with a vga cable and that didnt work and im kind of panicking since i have a lot of work to do with no way to do it. Someone please help.