I turned away from my computer for a second and caught strange flickering on my monitor. when i looked back, my monitor was basically changing different colors and my desktop image was skewing(kinda like when you try to watch basic TV with bunny ears) I couldnt use my key board or mouse while this was taking place. I ended up having to force restart the machine. Now, when i attempt to boot it up, it turns on the fans come on, keyboard boots up and it beeps once (same beep it always used to do) but thats as far as it goes. no image displays on the monitor and the mouse will never load up as well. Ive left it in this state for a few minutes, thinking it might just be my monitor, waiting to see if i hear windows start up sound through my speakers. Nothing, it seems like it won’t boot anything past the initial beep. Any ideas?