Hi, This is my first time reporting bugs, so have mercy :-) I compiled GRETL from source for my Linux machine. Having used it for a while, I noticed [so far] two issues. 1. Graphs are saved as PNG images (I did not try other formats) _without_ prompting the user on overwrites in case of existing files. 2. When modifying an OLS model with robust errors selected, the "Configure" button is inactive. Let me describe how I reproduce it. I select OLS (Main window -> Model -> Ordinary Least Squares) with heteroskedastic-robust errors (tick on "robust standard errors" and see the "Configure" button activated). Then, if I want to modify the model (Model window -> Edit -> Modify model) I get back to the "Specity model" dialog box. There I see the "robust errors" option selected [as expected], but the "Configure" button is not active. To activate it, I have to un-select "robust errors" and then select it again. These issues are probably not limited to the situations I described, and are not severe, of course. It's just where I saw them and I find them somewhat annoying. Regards, Vitalie CIUBOTARU