On Mon, 10 Oct 2016, George Matysiak wrote: I'm afraid I don't know what's happening there. I tried this experiment on Windows 8: * Completely erase the existing gretl installation (run the uninstaller, then delete the gretl directory under program files). * Install the current Windows 64-bit snapshot. At this point, under /File/Open data/Sample file I find the three standard tabs: Gretl, Greene and Ramanathan. * Install the POE4 data (also the Wooldridge data) from the gretl server, and restart gretl. Now I see the original 3 tabs plus the 2 new ones. * Potter about, use some menu items, quit gretl and restart. Now I still see the 5 tabs I saw before. I have not found a way to make any of the tabs disappear! Allin Cottrell