... and reverted, since it turns out that this is NOT the problem

... and reverted, since it turns out that this is NOT the problem
after all.  But then WHAT THE HELL IS, since I've not changed anyting
else, but it all suddenly works?  ARGH!

 _/|_	 ___________________________________________________________________
/o ) \/  Mike Taylor    <mike@indexdata.com>    http://www.miketaylor.org.uk
)_v__/\  "Even the genus _Tyrannosaurus_ hasn't yet been given a
	 good diagnosis.  Right now, its diagnosis seems to be ``big
	 tyrannosaurid from North America''" -- George Olshevsky