I have no idea what happened... Turning on my computer it said it was in low graphics mode, and I tried to configure it but it didn't do anything. Once I got logged in my internet wasn't working and my resolution was stuck at 800x600. When I tried to restart my computer, it kept repeating "rt2x00lib_request_firmware: Error - Failed to request firmware."

What is wrong? Or really, how do I fix it?