Hello everyone. I bought a Conion c100f and when I try and play tapes in the lower deck, the tape is not snug in the deck. Am I missing a "guide shoe" in the lowerdeck to make the tape fit more secure in the deck ? If I am missing something in the lower deck, do you know where I could find it. Also I need the mixing level knob(or anything I can use temporarily until I find a real one). If someone can help me I would really owe you one.