Version:            (using KDE Devel)
Installed from:    Compiled sources
OS:          Linux

Hi,
When we have a new unix account or we make "rm -rf .kde/ && rm -rf ~/Mail"
and we launch kmail.
There is not a item selected into tree folder.
And we click on "folder->properties" kmail crash.

Problem is the we don't disable action when there is not an item selected into kmail.

I created a temporary patch.
--- kdepim-3.1.94/kmail/kmmainwidget.cpp--  2003-12-12 05:39:39.000000000 -0500
+++ kdepim-3.1.94/kmail/kmmainwidget.cpp    2003-12-12 05:39:53.000000000 -0500
@@ -814,7 +814,8 @@ void KMMainWidget::slotModifyFolder()
 {
   if (!mFolderTree) return;
   KMFolderTreeItem *item = static_cast<KMFolderTreeItem*>( mFolderTree->currentItem() );
-  item->properties();
+  if( item )
+     item->properties();
 }

it fixes crash.
But we must disable by default menu item when there is not a folder selected.

Regards.