The "demo" files that the customer sees in his System Folder are QuickTime movies. They are used by AppleGuide to illustrate the functionality of the "clickable" Trackpad used in some PowerBook computers. They are only labelled "demo" because they demonstrate the operation of certain Trackpad features.
To see what the movies demonstrate, open them using MoviePlayer, or try the following:
Step 1
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Go to the Finder and choose "Macintosh Guide" from the Help/Guide menu.
Step 2
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Locate the word "Trackpad" in the index.
Step 3
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Click on "How do I use the Trackpad to click and drag?" Click OK.
Step 4
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Follow the instructions in the Guide window.