friends,
i get the following warning when i do MH in dynare. 
is this normal or is it something to do with my model?
Warning: Matrix is singular to working precision.
> In DiffuseLikelihood1 at 68
  In DsgeLikelihood at 154
  In metropolis at 294
  In dynare_estimation at 772
  In Version_3 at 321
  In dynare at 26
cheers
reuben
			
		