Hey Louie,
The intonations may be off if you are having this problem. I would recommend getting your hand in the g chord position and just play the high e string and see if the G note is out of tune. Make sure you are not bending that high e string because this will for sure make it sound out of tune. If you are not bending the note and it is still out of tune, I would take it to someone who could set up guitars. I am sure there are people here that could help you with this but I always take my guitar to someone when I have problems. I hope this helps.