You start Notes (w/Symphony) or with Notes open, you try to open a Symphony file (document, spreadsheet, presentation) and you get an error message 1-3 times:
"internal error has occurred: GetStorage, name 'No Content!'". This has happened after you rebooted because Windows XP/Vista just crashed.
The file common.xcu OpenOffice/Symphony file has corrupted because of a crash while Symphony was running. If you have a backup, restore it.
Otherwise, you can delete the folder:
..\install program directory\data\workspace\.sodc
When you delete this folder, Symphony will automatically create new preferences from default. (Yes, you will lose any customizations.)