Index: dirtree_item.cpp
===================================================================
RCS file: /home/kde/kdebase/konqueror/sidebar/trees/dirtree_module/dirtree_item.cpp,v
retrieving revision 1.5
diff -u -8 -r1.5 dirtree_item.cpp
--- dirtree_item.cpp	2001/10/12 13:06:07	1.5
+++ dirtree_item.cpp	2001/11/12 17:15:16
@@ -109,17 +109,20 @@
 
 KURL KonqSidebarDirTreeItem::externalURL() const
 {
     return m_fileItem->url();
 }
 
 QString KonqSidebarDirTreeItem::externalMimeType() const
 {
-    return m_fileItem->mimetype();
+    if (m_fileItem->isMimeTypeKnown())
+        return m_fileItem->mimetype();
+    else
+        return QString::null;
 }
 
 bool KonqSidebarDirTreeItem::acceptsDrops( const QStrList & formats )
 {
     if ( formats.contains("text/uri-list") )
         return m_fileItem->acceptsDrops();
     return false;
 }