Need help TUNING my Guitar

[Madcowz]

I just got an acoustic guitar (yay! 🙂), unfortunately I think I'm just about tone deaf (boooo 🙁)... so anyway, I downloaded a couple tuning programs, but I'm not quite sure how to use them. You see both have a display with a needle that goes on a strectrum of -50 to +50, 0 being perfect. You basically strike a string in front of a mic and the needle will move accordingly to how tuned (or out of tuned) it is. You want to get zero, but here's my question:
Since the needle progressively goes down after striking the string, do I want to tune it so it PEAKS at zero (start +, peak 0, end in the negatives) or START at 0 (and end negative). An example of this would be:

Start at +8, peak at 0, end at -8
OR
Start at 0, end at -15

 

[Colt45]

just get it close.

i got a tuner here somewhere i never use, not that i play much guitar anymore..

 

[Howard]

Just play a MIDI file with a single note with a pitch of whatever string you want to tune and tune the string so that they blend.

 

Just by a tuner. Get the little silver Korg for $15, cant go wrong and simple as hell to use. If not the tuner on Guitar FX Box works pretty good and is easy to use.