So Im not super sure what is causing this to happen, but the ROG key that is just about the F4 on mu GU501GM does nothing 99% of the time and both FN keys do not change anything so I cannot use any of the functions that I should be able to access while holding those down. Does anyone know what may be causing this and is there a driver or update that I can download to fix it? Please let me know, Thank you.