hi, is there anyone facing joystick problems? as for me, sometimes my joystick refuse to go the direction that i asked to, it takes like few times only can, is there any way to fix this?

erk, i found out something weirdo on my k810i, when i plugged in the headset, i only can hear sound from left hand side, while if i plug in half of the headset, i'm able to hear sound from both sides, any solutions for this? by the way, i'm using hpm-70 headset