my brother gpu is gigabyte ati radeon hd 4670 1gb,ram 2gb,motherboard g41mt-s2 processor pentium e5700 at first he used to play gta 5 but suddenly he cant after giving windows why is that and what is the solution and can he play middle earth shadow of mordor with low configuration.and what is the solution for gta 5 thank you for giving ur tme....