I think my grandmothers video card is malfunctioning. The resolution was set to 640/480. The color bit was also set to the lowest setting. I changed both and the screen went black to show that it's changing, but when the screen came to, nothing had changed. I checked device manager and there was a yellow exclamation point next to thr video card driver. I checked for updates but win stated that it had the latest driver. I then rolled back the driver, but still, no fix. I disabled thr driver, and was going to reenable it but I accidently shut down the computer when it prompted me to. Now the computer wont power on. Suggestions? The colors were extremely hard to read and the windows were over sized, almost like someone had inverted the colors. Please help!