[Gretl-users] vecm question

Hi all, I'm trying to use gretl's vecm command. The following statement : vecm 2 1 x1 x2 gives me the following output : Cointegrating vector : x1(-1) b1 x2(-1) b2 Equation 1: d_x1 const theta d_x1_1 g1 d_x2_1 g2 EC1 alpha Given the above output, I'd expect the predicted value d_x1_hat for d_x1 to be : d_x1_hat = theta + g1 d_x1_1 + g2 d_x2_1 + alpha ( b1 x1(-1) + b2 x2(-2) ) However, applying the above formula yields crazy results. Surely, I must be overlooking something. Any hint ? Thanks and season greetings ! Aurelien