Game breaking errors

[Christian Gay Porn Salesman]

Since Borderlands only recognized my integrated card and my performance was crap since I can only use that to play, I disabled it and now when I'm trying to play from the launcher the message "Your video card does not support alpha blending with floating point render targets (D3DFMT_A16B16G16R16F)" will always appear and I can't even start the game, please help!