If you answer, "Yes", Maple discards most if not all of the explanations and instructions written in black. If you are wondering why we have not updated the worksheets ourselves, here's the explanation. Maple is upward compatible (mostly) but not downward compatible. So if we update our worksheets to Maple 15, say, then those with Maple 13 and lower versions of Maple will not always be able to access the worksheets easily.

Anyway, the single "No" answer above will suffice to give you access to all of the instruction and explanation. In addition, you should be aware that data is shared both within a worksheet and across worksheets that are open at the same time. It is important to reset your variables when you go to a new worksheet.