The original program example I posted way back during another life is valid for the non-A version of the 16F62X. In the non-A version you get a wake from sleep regardless of the state of the GIE bit. However, the operation of the GIE bit differs in the A version in that respect and Alain is correct. It teaches us all a lesson here that some of the changes between PIC versions are seriously subtle! So it's read the Datasheet - thoroughly!