One of my relatives has a problem with kmail disappearing. Sometimes kmail disappears and won't reappear until "killall -9 mail" is run and it's lanched again.
I tested on that system and it reported the state IsUnMapped when kmail is visible. I haven't yet run those X commands while kmail is invisible. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/