i used amd overdrive last night and set it up to 1300mhz and now is -1 i don't know what the hell hapened don't tell me my graphics card is broke because i can still play nfs the run and the laptop screen is working everything is working only the gpu status not working and i can't drag the from -1 to 1300mhz when i hit apply it goes back to -1 help please i'm poor i can't afford buying and fixing if it's broke please tell what to do