For Storyline 3 to work properly on Windows 7 computers with high-resolution monitors, you must use an Aero-enabled system theme.
If Aero is disabled on Windows 7 when you’re using a DPI setting higher than 100%, you may experience erratic behavior in Storyline 3. For example, the ribbon may be the wrong size, or text may be misplaced in your published output.
How to Enable Aero in Windows 7
Right-click your desktop and choose Personalize from the context menu, then select an Aero theme from the themes gallery. That’s it!