uninstall the drivers , use ddu in safe mode to completely remove , then do a fresh install of the correct drivers .
if that doesn't work we will need a lot more information before we can help .
complete pc specs with os used .
is this a new build , a recently upgraded build , or just a problem that just started ?
I allready uninstalled drivers and installed the lattest , and nothing changed , i tryed everything possible except reinstalling windows again , and i dont want to do that ... . This problem started a few weeks ago .
its not a PC its a Notebook ASUS K53TK-SX104D with: AMD Radeon™ HD 7670M/6520G2 , AMD A6-3420 APU , RAM: 4.00 GB and running on it Windows 7 Ultimate 64 bit SP1.