Hi Steve -- thanks for responding to Darcy's request for help.  She is 
operating from a borrowed laptop and it won't let her receive posts from this 
group 
-- go figure -- so asked me to forward your post to her.  I did.  She doesn't 
have cancer, she has alpha lung disease (I think that's what it's called).  
Guys -- she is desperate for help.  The posts with H202 configurations are no 
help at all.  Please -- she's in trouble.     MA