If yo do a databse backup over the build in backup tool you run in trouble while importing it again. The export tool put every ~30kb a ; and a single line in the export like this (w3t_Last):

INSERT INTO w3t_Last VALUES ('UBB30','686','1105784265');
;

INSERT INTO w3t_Last VALUES ('UBB28','139','1118695875');

If you like to import this export with phpmyAdamin you must first edit the export and clean out the space lines or the import will fail.

Yes, thank you - I posted this a long time ago but I think the post was deleted.