Gerben,
Some ebook formats do not allow installation to more than one computer. The ebooks published by Gerard Henrotin are an example. I think the PDF files are encrypted and must be read by the ebook which is tied to the installation computer. $35.00 is a great price for the ebook PDF if it is available as a separate purchase.
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regards, -John S
"...We hold these truths to be self-evident that ALL men are created EQUAL and are endowed by their Creator with certain UNALIENABLE rights, and among these are life, LIBERTY, and the pursuit of happiness..."
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