Note that under USA law the right to *use* (including the right to make such transient and temporary copies as might be required for effective use) a copy of a program of which one is a legitimate owner is automatic and requires no license. Thus if someone gives (or sells) a copy of a GPL licensed program to you, you are not affected by the GPL until you make a copy of your copy and then give or sell it to someone else (or retain a copy after passing the one you received on).
-- John Hasler jhas...@newsguy.com Elmwood, WI USA