XFX R7870 vanilla clocks
OS: WIndows 7 x64
My HD 7870 was working fine until 13.4, ever since then i keep getting DX11 even rolling back doesn't work DX9 works fine but i paid for a DX11 capable card and i expect to be able to use it
Motherboard: Gigabyte Z77-UD3H
Power Supply: Corsair CX600
Display Device(s) and Connection(s) Used:Asus 27in monitor connected via HDMI
Applications and Games:Any Game utilizing DX11 features, DX9 and DX10 run perfectly fine.
CPU Details: Intel Core i5 3570k @stock
System Memory Type & Amount:16GB DDR3 1600MHz
Any help you can provide would be greatly appreciated.