Update to the latest patch
To be sure you are running the very latest version of AstroClock that fixes known bugs, download the latest patch:
For Windows (64 bit), click here to download the update installer. Double click to run the downloaded file.
For Mac, click here to download the update installer (if you installed from the App Store, don't use this patch, wait for the App Store to update it automatically.) Unzip the donloaded file and copy AstroClock.app to your Applications folder (replacing the existing file.)
If AstroClock stops working after you have patched it, you need to run the full setup instead. Click here to go to the page to download the full setup file.