you guys were right. after confirming with yamaha and fiddling with it myself, i have confirmed how to keep zone 2 and 3 off, as someone posted herein. you go thru the procedure with the remote to power zones 2, 3 off. then, leaving the remote in "2001" mode, only use the remote to power on/off the unit. if you use the main switch on front of the unit, it turns everything back on, including zones 2, 3 even thought they were previously disabled. thanks for the help.