Still having problems with my video card. Help thru team viewer anyone?

I don't know what else to do. I'm still having complications with direct x running Battlefield 3. Now on DC universe, it is super glitchy. I bought a Sapphire AMD Radeon HD 6850. Recently, wiped all AMD drivers and reinstalled video card (took out of computer). I have error messages to provide if will help. I also have Team Viewer, if anyone can help remotely.