MOSS 2007: Change Sharepont Timer job cycle time for checkingdropfolder incoming email - Sharepoint

This is a discussion on MOSS 2007: Change Sharepont Timer job cycle time for checkingdropfolder incoming email - Sharepoint ; Does someone know how to change the cycle time of the Sharepoint Timer for checking the dropfolder of the incoming email? I think it is set by Central Administration but how to change it? Thanks Orfeo...