Hey @jimindenver, here are some things you can try:
Reset the Device
Hold the power and home button for 15 seconds.
Boot to Recovery Mode
-Press and hold down Volume UP + Home + Power on (add one and one button) Hold until you get a menu.
-Go down to “Wipe Data/factory reset” (navigation via volume up or down). Confirm with Home button.
-You are now in a menu with alternatives. Choose “Yes — delete all user data”. Confirm with Home button.
-You are now back in the recovery menu. Go to “wipe cache partition” select with Home button. If your phone does not have this option skip this step.
-Choose “reboot system now” to restart
(Found this here: http://www.logmyblog.com/2012/06/samsung...)
Try the reset keys
Try the reset keys mentioned in the link below: