Hello dear peoples.. Following on some advice from fellow netriders, as Im trying to fix a charging problem, I have been advised to check the pick up coil. To do that I must first remove the cover on the left side. So far, I have taken all the screws off, and a knob at the top, and the cover doesn't come off... there is what looks like a big slot (screw?) in the middle.. do I need to take that off? manual just sez "remove cover"" How do I do it?