It is surprising to me that the WinSpellChecker knows that "hedache" is misspelled but is unable to offer any alternatives in its suggestions box. There are lots of suggestions for "mispelled".
Hello Roy,
I have tested this behavior with 10.2 and it works fine for me, I attaching and the sample that I use. For more information about UltraSpellChecker and its default dictionary you can go to our online page:
http://help.infragistics.com/Help/NetAdvantage/WinForms/2010.2/CLR2.0/html/WinSpellChecker_Dictionaries.html
UltraSpellChecker has ability to load own dictionary if the default is not enough.
Your message stated that you attached the sample that you used, but I do not see the attachment.