How to reject all spell suggestions?

[Suresh Govindachar]

Hello,

  After doing i_CTRL-X_CTRL-S, how can one 
  reject all the suggestions?  

  The only way I know is to accept some suggestion 
  and then to do an undo.

  Is there an option to have the existing word be
  the first word in the list of suggestions? 

  --Suresh