Make sure that the Chart Window containing the chart, the scales of which are to be reset, is selected as the active window.
To reset both scales of a Chart Window click the '''Reset Scales''' [[File:Reset_Both_Scales_newReset Scales.png|30px]] icon on the '''Control''' toolbar.
<div style="background-color: #E5F6FF;">Tip: Both scales can also be reset by selecting '''Format''' in the main menu and clicking '''Reset Scales'''.</div>