First, thanks for the new quantile regression function in gretl. It looks great. However, I found a bug (using the Windows snapshot from 2008-05-14): 1. Using the GUI, open the Ramanathan data file "data 4-1". 2. Choose Model > Robust estimation > Quantile regression... 3. Set price as dependent and srft, bedrms, baths as independent 4. Set 0.25 0.50 0.75 as desired quantiles 5. Press OK: The program freezes Best regards Andreas