Mitch...You my new friend, are a genius!  I was skeptical because this Alltek MPU is brand new (I just put it in today), so I figured there was no way that this would help.  But...low and behold, I did the reset on the MPU and all my sounds are now working!!!    I can not tell you how much I appreciate you and Strangeways taking time to respond to my post to help me.  Now I can move on to my only other issue of the upper flipper not working and my machine will be flawless!

Thank you again!