Yes, please find and delete the high_scores.db file. On Windows 7 and 8 it can be found here:
ProgramData\LearningScience\ReadingSounds 1 Pro\db\high_scores.db
On Windows XP it will be in this folder:
Program Files\LearningScience\ReadingSounds 1 Pro\db\high_scores.db
Please note: You may need to 'Unhide' your hidden files and folders to see the ProgramData folder in Win 7/8:
Here's how to display hidden files and folders.
Open Folder Options by clicking the Start button, clicking Control Panel, clicking Appearance and Personalization, and then clicking Folder Options.
Click the View tab.
Under Advanced settings, click Show hidden files, folders, and drives, and then click OK.