Properly? I just deleted it in windows.
yes... I am asking how..
If u are using Vista go to C:\ProgramData\Team MediaPortal\MediaPortal\database folder and delete (or better move the file to another location just in case ) the "movingpicture.db3" file.
For Windows XP the path is C:\Documents and Settings\All Users\Application Data\Team MediaPortal\MediaPortal\database
folder (remember that u must have "show hidden files" setting enabled.