Dear Allin, Thank you for responding. My MacBook specifications are as follows: Processor: 2.6GHz Intel Core i7 6-Core Memory: 16GB MacOS: Ventura 13.0 The Gretl was working fine until I attempted to instal the new version. I remember accidentally clicking the NO button when it asked "gretl try to access your download folder" to instal, and then the installation failed message appeared. Since then, every time I try to instal including the previous version, the same failed to instal message appears. I appreciate your assistance as we approach the final exam, and I am completely reliant on Gretl for my teaching econometrics. Thanks again, Regards, Fazeel Gretl was working fine From: Cottrell, Allin <cottrell(a)wfu.edu&gt; Date: Thursday, 3 November 2022 at 1:16 am To: Gretl list <gretl-users(a)gretlml.univpm.it&gt; Subject: [Gretl-users] Re: Installation failed On Wed, Nov 2, 2022 at 4:34 AM Fazeel Jaleel <fjaleel(a)gmail.com&gt; wrote: What's the processor type on this machine? I was able to install gretl 2022c successfully on an M1 MacBook Air running Monterey (12.6.1). Allin Cottrell _______________________________________________ Gretl-users mailing list -- gretl-users(a)gretlml.univpm.it To unsubscribe send an email to gretl-users-leave(a)gretlml.univpm.it Website: https://gretlml.univpm.it/postorius/lists/gretl-users.gretlml.univpm.it/