For the past days, BF4 has been giving me a DirectX error, as well as saying that my computer is running low on memory. I have 6GB of OCZ 1600 at 8-8-8-24 speeds. I'm not sure what seems to be the problem. The game was working flawlessly a few weeks back. I'm not sure if it's an OS problem with Windows 7, or if it has to do with my RAM.