I want to open my HR34 case so I can do some hard drive diagnostic work. The drive appears to be failing and although I can get a new receiver, the content of the current receiver will be lost. I've examined it closely and cannot be sure of the correct technique to avoiding damaging it. I suspect that multiple bottom case tabs must be manipulated together, but I may be completely wrong and the front panel needs to be removed so that the cover will slide off. Can anyone help?