zkus tentohttp://global-download.acer.com/GDFiles/Driver/VGA /VGA_AMD_8.901.4.0_W7x64_A.zip?acerid=634612372072 765921&Step1=NOTEBOOK&Step2=ASPIRE&Step3=ASPIRE%20 7750ZG&OS=ALL&LC=en&BC=ACER&SC=EMEA_27