If I upgrade OSX 10.4.1 to OS 10.6 using DVD supplied by Apple for this purpose and choosing the Archive and Install option and also Preserve User and Network settings option
(1) Will all existing programs and data be maintained
(2) Will the driver for the Canon MX410 (usb connection) be maintained
(3) Will the customers Apple mail account (including all emails) be maintained.
Note: Memory from Apple to allow 10.6 to run will be installed first.
Note: Internet connection is ethernet cable wired to a Verizon FIOS gateway so the encryption key of the gateway does not need to be maintained as wireless is not used for internet access.
iMAc is mid-2007 and customer mentioned no existing problems