Power Door Locks - 2000 Silverado

This issue is when using the keyfob.
 
Normal Operation:
press once--unlocks drivers door
press twice--unlocks both/all doors
 
My Truck:
press once--unlocks drivers door
press twice--unlocks passenger door and locks drivers door
press again--unlocks drivers door and locks passengers door
press again--unlocks passenger door and locks drivers door
This continues as you might guess.
 
The lock funtion works normally..
 
Any suggestions???
 
Thanks,

Come on, someone must have seen this issue.....
 
Thanks,
 

So No one has ever seen this?