And if I'm directX 10?
Which Engine [number] I'll be using?
Dude, it's really nothing, it's just setting your clients to suit your computer. People have different computers with different settings, for example DirectX 9, with this tutorial, you just made my client shitty and slow as hell. CipSoft has given this tutorial for YEARS. Whoever didn't know this, sure hell be retarded.
And to tell you once more, you do not need to add a "yes" at the end.