This was fixed in version 5.1g of SDT.

>Why would the update be happening on every load of the application?
>
>PUBLIC oMeta
>
>oMeta = NEWOBJECT('DBCXMgr', 'dbcxmgr.vcx','',.f.)
>IF VARTYPE(oMeta) = 'O' AND NOT ISNULL(oMeta)
> OPEN DATA charges SHARED
> oMeta.SetDataBase(DBC())
> IF oMeta.oSdtMgr.NeedUpdate('CHARGES!ALL')
> oMeta.oSdtMgr.Update('CHARGES!ALL')
> ENDIF
>
> OPEN DATA appdata SHARED
> oMeta.SetDataBase(DBC())
> IF oMeta.oSdtMgr.NeedUpdate('APPDATA!ALL')
> oMeta.oSdtMgr.Update('APPDATA!ALL')
> ENDIF
>ELSE
> WAIT WINDOW 'The application will now be shut down because the meta data object could not be created.'
>ENDIF