It may be trying to write stuff in the BlitzMax folder, in which case your permissions might well be screwing you.
One thing to try might be to change the permissions to be a wee bit more flexible.
Open up a terminal :
cd /Applications
sudo chmod -R 777 BlitzMax
"cd /Applications" - is assuming that this is where your BlitzMax folder is. "BlitzMax" is the name of the BlitzMax folder. If it is something else, replace with the appropriate name.
It will ask for your admin password, then it will set all permissions in the BlitzMax folder (and all child files and folders) to full permissions - that is read, write, execute for all users.
See how you get on with that.
By default, the BlitzMax installer will attempt to install into the Applications folder. I can't remember offhand if the installer includes the option to install it somewhere else, in which case you could then install it in your user folder. (I know that when making an installer you can set it so that you can allow the user to override the default install folder)
:o)
|