MICHAEL
You need to back-quote the list and comma-eval the Gray-Array Symbol:
CONVERT:
(send *dynamic-window* :set-margin-components
'((dw:margin-label :string "name"
:background-gray tv:10%-gray)))
TO:
(send *dynamic-window* :set-margin-components
`((dw:margin-label :string "name"
:background-gray ,tv:10%-gray)))
Hope this helps
NICHAEL