Edge 3? RG problem

[b-rich]

hey my friend has this RG4EXQM1 with the edge, and i had put new strings on it ver recently and everything is even and in tune but when the bar is pulled up, the G string goes sharp and in order to bring it back to pitch the trem bar has to be dive-bombed, can someone tell me why only the G string does sharp and nothing else?

[chaos731]

Improperly stretched G string? Slipping through the nut lock? Loose intonation screw? These are all possibilities, though the string stretching is the likely culprit.