I asked the following question on the Lenovo Forum:

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Lenovo Support Document Title:
How to use the function (Fn) keys on the keyboard -
ThinkPad R60, R60e, R61, T60, T60p, T61, Z61e, Z61m, Z61t

Document id:  MIGR-62714
Last modified:  2007-06-10

Conflicting Statements:
First, it says:
"The following table shows what each function key (Fn) key on
your keyboard is for and how to use them.
Note:
   * The Fn key works independently from the operating system."

But, then later, near the bottom:

For:  Fn + F9
 It says:
   "Note: This function is supported only in
          Windows 2000 and Windows XP."

So, which is it????  "...independent of OS..."
               or:  "...only in Windows..."
[Just for the record, I don't use any flavor of Winxxx.]

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ONE response that came back, because I did not mention OS/2-eCS was:

...does that mean you use Linux?  If so, this should answer all
your questions:

http://www.thinkwiki.org/wiki/How_to_get_special_keys_to_work

It appears from my very quick look at this page that most of the
functions are actually controlled by ACPI.

Would it be appropriate to file a ticket indicated that these keys do
not function?  The page does not appear to be model related, except for
some keys that are only applicable to specific models.

Carl