I had the same problem with double notes on purchase orders...below is the note from Lynn and it worked for me.
" Re: Notes for purchase orders
Reply #4 - Oct 31st, 2009, 9:53am Double Notes are because hte Note Type is "CSN" and you turned Evo Notes on. If Evo Notes is set to Y then you need to change the Type of Notes to something other than CSN.
"CSN" Notes are Classic Synchronized Notes and they are saved both to the Evo Notes file and the old Classic Notes file. As a result, once you turn Evo Notes on, it is printing both and you get them twice. For POs that already exist with the CSN Notes, when the Evo Notes window pops up during printing, set it not to print the CSN Notes and then it will print them once from the Classic file but not a second time fromteh Evo Notes file.
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Lynn Pantic
IS Tech Support
lynn@istechsupport.com "
Good Luck