I'm not going to tell the answer I'm afraid. But I will give you a website that has all sorts of info on all different kinds of computer hardware and more. It even has videos to watch about different things and you can buy the stuff. This website I speak of is tigerdirect.com. Hoping this comes in handy use.
yes
Drivers are part of your computer's operating system, they are not part of Minecraft at all.
There are several factors to consider,it could be a faulty video card,bad wires, or the screen is not very good.The last thing to consider is if your computer is using too much or doesnt have much processing power for the video
Try searching the video card manufacturer's website for updated drivers.
Possibly. More likely, if your card has gone bad, you will have no sound output at all and video will be unaffected.
Not enough info to even hazard a guess!
Not usually. Video card memory generally consists of ROM chips soldered directly to the card, so if the graphics card goes bad, it's best to replace it.
If you are using a vga connection, usually blue then you may have bent a pin on the connector, the cable may be bad, the monitor could be bad, your video card could be bad, or you could have the wrong driver or settings.
Crappy computer or bad site
This usually indicates an overheating or damaged video card. With the computer turned off & unplugged, open it up, find your video card (it will be the one with the jack you plug the monitor into, assuming you don't have on-board video) and blow out any dust or debris clogging up the heatsink & fan. Also check to make sure the fan can turn freely, if theres any friction in it, the fan has gone bad and needs replacing. If the heatsink & fan are fine, & it still does this you've probably got a bad video card. You will have to replace it.
More than likely the video card is going bad.
You need to update your video card drivers. Typing "[Video card name] drivers" in Google usually gives you links to driver downloads.