diff -cNr old/sc/source/ui/view/cellsh3.cxx new/sc/source/ui/view/cellsh3.cxx
*** old/sc/source/ui/view/cellsh3.cxx	Wed May 23 04:12:36 2007
--- new/sc/source/ui/view/cellsh3.cxx	Thu Oct 18 22:01:10 2007
***************
*** 67,72 ****
--- 67,73 ----
  #include "editable.hxx"
  
  #include "scabstdlg.hxx" //CHINA001
+ #include "attrib.hxx"
  
  #define IS_EDITMODE() GetViewData()->HasEditView( GetViewData()->GetActivePart() )
  
***************
*** 757,762 ****
--- 758,773 ----
              if ( !GetViewData()->GetDocument()->GetChangeTrack() )
              {
                  // test whether to merge or to split
+                 ScDocument*      pDoc   = GetViewData()->GetDocument();
+                 SfxObjectShell*  pDocSh = GetViewData()->GetSfxDocShell();
+                 SCTAB              nTab = GetViewData()->GetTabNo();
+                 SCCOL              nCol = GetViewData()->GetCurX();
+                 SCROW              nRow = GetViewData()->GetCurY();
+                 BOOL        bProtectDoc = pDoc->IsTabProtected( nTab ) || pDocSh->IsReadOnly();
+                 const ScProtectionAttr* pProtAttr = static_cast< const ScProtectionAttr* >( pDoc->GetAttr(nCol, nRow, nTab, ATTR_PROTECTION ));
+                 BOOL       bProtectAttr = pProtAttr->GetProtection() || pProtAttr->GetHideCell();
+                 BOOL           bProtect = bProtectDoc && bProtectAttr;
+ 
                  bool bMerge = false;
                  switch( nSlot )
                  {
***************
*** 799,809 ****
                  else
                  {
                      // split cells
!                     if (pTabViewShell->RemoveMerge())
                      {
                          rBindings.Invalidate( nSlot );
                          rReq.Done();
                      }
                  }
                  break;
              }
--- 810,826 ----
                  else
                  {
                      // split cells
!                     if( bProtect )
                      {
                          rBindings.Invalidate( nSlot );
                          rReq.Done();
                      }
+                     else
+                     {
+                         pTabViewShell->RemoveMerge();
+                         rBindings.Invalidate( nSlot );
+                         rReq.Done();
+                     }    
                  }
                  break;
              }