logitech cordless controllers

[frequency]

hey guys i bought my logitech ps2 wireless conrollers a couple of months ago and about a month ago the right analog stick got messed up and now i cant play my games cause the analog stick is changing the camera angles and all that junk autmotically. and i also heard that the new ones that came out fixed that problem so i was wondeing if i have the old ones or the new generation logitech controllers. and if i i have the old ones what do i look for when i go and buy the new ones?