i just got an ibanez rg7321 about less than a month ago i notice that the g string on the guitar sounds like ****. I cant explain it sounds like its out of tune when its not ive tried all kidns of chromatic tuners and guitar pro. the string is tuned just soudns bad(these are the factory strings) will changing the strings have any difference? ive notice this in a lot of ibanez guitars, i previously owned a rg2ex1 which had the same string problem on the g string, but deciding to move on and play a seven string i have got myself into the same problem, or is this just some kind of feature with ibanez guitars?
Try changing the strings. If that doesn't work, mess with the setup.
My Dean was the same way. First, change the strings. If that doesn't work, mess around with the action and intonation.