[Plant-biology] Sago Palm Disease - Please Help!

[Capps Family]

Hi,
My in-laws from Southern CA gave us a 12-15"  Sago that they had been  
growing in their yard among dozens of other ones,  successfully.  We  
live in Utah and of course are attempting to grow it indoors.  I  
moved it away from my south window when we put up the Christmas tree  
& it almost immediately started turning yellow with tons of little  
seed like dots appeared all over the bottom of the leaves. They can  
be scraped off as well, thus not actual spots in the leaf itself.  It  
is also "spraying" a sticky substance all over itself, the pot &  
nearby plants.  Of course we don't see it happening, but it's like a  
fine mist, sticking all over everything around it.  It came back to  
the south window the first part of Jan & seems to be getting worse.   
I feed it  "Superthrive" nearly every watering.  Just a drop in each  
half gallon.  It contains .09% B1, .048% 1-Naphthyl acetic acid.   A  
visitor from CA who had them at one time told us it was in serious  
condition & we needed to wash it with soapy water & scrub all the  
dots off of the back of their leaves & get rid of the stickiness.  I  
am afraid to wash it down with soapy water & here in Utah, no one can  
help us either.  Can you tell us what it's problem is & how to revive  
it?
Thanks,
Sandi