Thanks for the reply,

 

UltimateSpell is a great 3rd party Spell Checker from Karamasoft...  It is not NetSpell... that why my code worked in the online demo...anyway, I figured it out...

 

...it was very crafty solution, but it entailed using the Javascript API getHTML() method to move the editor content to a hidden textarea (css tag "visibility:hidden") and then have the spell checker check the text area and not the Editor IFRAME.  The works flawlessly...after the spell check is complete, I use the JavaScript API to move the update textarea text back into the Editor IFRAME... what a hassle... but it's working sweet now...

 

I know I have to be the only person to have integrated the KaramaSoft Spell Checker with CuteEditor to date...getting these two components to play nice (in IE) takes some very tricky JavaScript (a little more than I described here).  If anyone wants more details, let me know...