Charlie:

Just curious.
Are you getting your Style count from the top LH corner of the Style Picker window?
Mine shows 8565.

When I go to What Add Ons Do I Have, the "MIDI Styles sets [NOT found]"
shows "You have all of the MIDI Style disks (unless we've made some new ones)".

Can you not just copy the contents of the "Styles" folder from the old laptop
and paste them into that folder on the Desktop? You can get it to ignore the dupes.

Just a suggestion.
LLOYD S