Nostalrius Begins - Quality wow vanilla realm (1.12)

I already tried resetting key binding. Not sure why my right click doesnt work properly. when i hold right click in the game it works the same as my left click instead of moving my character.

Anyone know why?

Thanks.

Faulty mouse? Have you tried playing a different game to see if right-click works as expected or have a spare mouse laying around you could try WoW with?