Thanks for the helpful replies.  As it turns out, clearing INTCON before
setting GIE fixed things, although I can't imagine how INTF is being
set.  The GPIO2 pin is tied to ground.  Must be some sort of internal
funniness going on.

I have used the external interrupt on a number of 16F84 projects, for
sensing switch closure or a change of state of a logic level of a output
from another chip and never before have I explicity cleared INTCON.  I
have always relied on INTCOM supposedly being all zeroes at power up.  I
won't be doing that anymore.

That little bit of test code was purely for my own diagnostic use.  I
always use labels but in this instance it didn't seem to warrant it.
Likewise this test code didn't sleep because I wanted to have some sort
of activity to monitor with my logic probe.  Now the REAL app wakes up
when it is supposed to.  Best get on with it.

Regards

John

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