I want to know anyone had same experience as I do. My VM serious arrived yesterday so I set it up right away then play for it for the whole night. This morning when I wake up looking at one of the VM10 which is interesting the tempered glass base it totally broken in piece. don't know what happen. My suspicious since the speaker is located in the most open side of the living room so the coefficient of expansion if the screw and the glass is different which cause that break? Or I turn the screw too tight? Or just I am so luck to get a defective tempered glass (I doubt it). I have no idea. Any one had the same experience as I do. I live in CA so the temp shouldn't be that extreme. I see tempered glass store front everywhere. Any one had any clue?