The answer to this depends entirely on which version of the Performa operating system you have. I'll provide both answers for you.
If you have version 7.0.1p-7.1p2:
To prevent the computer from defaulting to the Documents folder you need to remove the Launcher Control Panel from the Control Panels folder within the system folder. The Launcher is what is causing your computer to default to the Documents folder. Even though the Launcher is removed from the system folder, you will still be able to use the Launcher to access your applications.
If you have version 7.1p3 or greater:
Open the Performa Control Panel. On this Control Panel there are several options, including an option to change what you want the default folder to be. Currently it is set to default to the Documents folder, but you can change this to default to the last folder used.
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