I've been having problems with my graphics card. Updated the driver, but that hasn't helped so I'm thinking about replacing it. I've searched my documentation but can't find what sort of card slot my motherboard requires; unsure about what my power supply is and whether I would have a problem. I don't need a high-end graphics card, but want to get something that would be good for video playback. I currently have a GeForce 420GT installed.
How do I specify what graphics card would work? Thank you!