This issue occurs with Power Macintosh 7200 series computers using the Energy Saver control panel version 2.0. It has been resolved with the Energy Saver control panel v2.0.1, which is included in System 7.5 Update 2.0 (System 7.5.3). Your friend's Power Macintosh 7200 series computer came with System 7.5.3 pre-installed, which is why it does not have this problem.