I am sorry to hear you are having problems but let me help you.
The latest graphics driver for your controller available is for Win 7 64 only. You can check this information at the following link:
In case you want to try the driver for win 7 it can be downloaded at the following link:
It is important to say that this is a driver for win 7 so we cannot guarantee it will work on win 8.
THanks! It worked very well and it works now!