but about clearing your screen at logout, try 'tput reset'
Thanks for the reply, but the suggestion did not work. You did, however, provide me just enough info that I could begin searching the web. I discovered approximately a dozen suggested solutions. I tried them all and every one of them failed to prevent me from using Page-Up to view the screen buffer history after logging out. The only trick that succeeded for me was manually toggling back and forth to a different console.
I did find some online discussions in some developer groups and apparently this problem is hardly trivial. Unless somebody corrects me, there really is no way to programmatically clear the screen history buffer when logging out. I sure would like a solution to this.
Sure would like to know why my login screen text from /etc/issue hoses when I enter an incorrect password too.