diff -r 17f3ca06e39a -r 4fca8bcfaff0 hedgewars/uMatrix.pas
--- a/hedgewars/uMatrix.pas	Sat Jun 14 23:59:20 2014 +0200
+++ b/hedgewars/uMatrix.pas	Sun Jun 15 00:02:25 2014 +0200
@@ -44,6 +44,8 @@
 
 implementation
 
+uses uDebug;
+
 const
     MATRIX_STACK_SIZE = 10;
 
@@ -258,7 +260,7 @@
             write(Result[i, j]);
           writeln;
         end;
-        halt(0);
+        TryDo(false, 'error in matrix multiplication?!', true);
     end;
     {$ENDIF}