Index: mttroot/mtt/lib/cc/mtt_implicit.cc
==================================================================
--- mttroot/mtt/lib/cc/mtt_implicit.cc
+++ mttroot/mtt/lib/cc/mtt_implicit.cc
@@ -47,11 +47,11 @@
 	      AA (col,row) = 0.0;
 	    }
 	}
     }
 
-  x = static_cast<ColumnVector> (xleftdiv (AA, static_cast<Matrix>(AAx + dx * t)));
+  x = static_cast<ColumnVector> (xleftdiv (AA, static_cast<Matrix>(static_cast<ColumnVector>(AAx + dx * t))));
   
   for (row = 0; row < Nx; row++)
     {
       if (openx (row) > 0.5)
 	{