Thanks for your response. Yes, I'm able to log in to my computer nearly 2009 MacBook Pro 17' (MacBookPro5,2
MB604xx/A)However I think there is something funky going on with my Apple ID/ iCloud account or password. I can log in on my 2021 M2 MacBook Pro and my iPhone 14, but not on the above mentioned MacBook or on another MacBook Pro (2015). The last two both give me the " incorrect password" message. When I try checking in under a different Apple ID, for example my wife's, it worked a few times, but is now giving me the same "incorrect password" message. I've tried typing on the physical MacBook keypad and with the mouse on the Keypad viewer onscreen keypad. Same result.