[Gretl-users] qlrtest, critical values

Dear all, I'm running a qlrtest for a structural break in a simpel OLS-regression with a constant and two dependend variables. gretl gives me a break-date, significant at the one-percent-level, the critical value of which is given as 6.02. gretl gives as source of those critical values Stock and Watson (2003): Introduction in Econometrics. I take it, those asymptotic critical values for a qlr test were originally calculated by Andrews (1993) and corrected also by Andrews (2003). I just checked with the Andrews (2003) paper and if I read that table correctly, the critical value of a qlr test with 15% trimming and 3 degrees of freedom is 18.07. I randomly ran a few other regressions, and the other critical values don't seem to square either. Am I missing something here, or did there go something wrong with the transfer of those values into gretl? Best, Britta