Originally Posted by: caponi14But when i then fret a note, especially at the 1-4 fret, the note is sounding sharp in pitch. I checked it on my tuner, and the tuner say the notes when fretted is sharper than if i just pick the open string.. I am suspecious that the nut might be too high on the E and G string. I had it checked at a guitar shop and they told me it looked good. But can they really say that for sure just looking at it?

I think you've identified the problem: the nut is too high.

You can try to lower the strings enough to counteract this. But if the guitar is intonated properly at the 12 fret, then the nut slots will have to be cut a little bit lower. Enough to fix the problem.

If the shop looked at it and said it looked right, then tell them that it doesn't sound right. And show them with the guitar connected to a tuner.

The only other thing I can think of is that you are digging in too hard with your fretting fingers on those lower strings and pulling the strings sharp.

Best of success!