PSP builds cache files on your computer to improve program performance. Sometimes, these PSP cache files become corrupted. You might have installed Picture Tubes that are not showing, or Preset Shapes. Or you're seeing duplicates of your Picture Tubes. When this happens, the best thing to do is to reset cache, deleting all the cache files so PSP can rebuild them. To do this:
Choose File...Preferences...Reset Preferences.
In the Reset the Application dialog, CHECK the "Delete all cache files" checkbox.
Click the OK button.
Exit PSP - the cache files will be deleted.
Restart PSP - the cache files will be rebuilt as needed.
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