Hows youre vga doing? i had a simliar thing that freaked me out, but it happened with me turning the computer on (during the night it must of came loose), my screen was bright red. and then a few blue lines flickering up and down on the screen. after a good while i tried to make sure the hdmi cord was plugged in all the way, and then the screen went to this blue tint but showed picture. (i was certain my cats had striked again, and killed another expensive cord of mine by chewing it to pieces). i took the cord out and inspected, nothing that suggested that the cats were guilty. then i pluged it back in, and everything was good. weird..
kinda like my sudden problem with one my usb ports that my keyboard lights up, but it wont register any input from it on to the computer. so in an attempt to fix it-and the only way i knew how- unplug it and move it to my usb3.0 ports xD that other usb port still dont work. i dont know why either.