found the option to select secondary lock button.
I am still having a problem though...
if I have any program running and attempt to lock the screen I get the following pop-up's
1st: An application may have paused screen blanking.
2nd: Screen is locked and should blank in a minute.

well after waiting 10+ min. I still receive these messages and nothing works at all. have to pull the Batt. to reboot. (which for me is a pain as my battery cover is taped in place due to the latch having become very loose).

on a side note: my goofy experience of the d-pad center activating the last selection in personal launcher went away after pulling the battery.