After you open your Money file, change the location to which Money
backs up to a location that exists on the new computer -- typically
your Documents folder or a sub-folder in Documents. To do that Browse
to the folder.
In M+: Tools->Settings->BackupSettings
I suggest checking
x Automatically backup my Money file every time I close Money
Save in [a place on your hard drive ]. It is best to Browse to
a location rather than typing the path.
x Ask me before backing up each time*
x Compress Backup Files
Keep only the _20_most recent backup files [adjust to taste]
x Perform scheduled backups every _28_ days
Save in [a USB flash drive location]
x Ask me before backing up each time*
x Compress Backup Files
Keep only the _2_most recent backup files [adjust to taste]
Then periodically, perhaps each month or three, copy your latest
backup (uniquely named by Money) to a CDR or other media.