Hi mayaman,
"Asking Apple for a new disk?"
Yes if you do not have the
original installation disc for the
Mac Pro.
If you call
Apple Customer Service
020-120 1999 71st*, and provide the
serial number of the
Mac Pro, you may be able to purchase replacement
original system discs.
However, those will be for the version of
OS, that was pre-installed when manufactured.
But, they will contain the bundled software that is not included in a
Full Retail Version of a newer
OS X. The
Apple Hardware Test, specific to the
Mac model, will also be included.
If the original
OS, is lower than the current installed version of
OS X, you will also need to purchase a corresponding
Full Retail Version, of the desired system.
*Not sure of this #. Obtained it here
Contact Apple Sweden.
ali b