[ZendTo] ob_flush Error

[Poulton, Stuart W.L.]

Hi,

I've started to look at ZendTo for a production system, however I'm seeing the following errors logged

PHP Notice:  ob_flush(): failed to flush buffer. No buffer to flush. in /local/zendto/lib/NSSDropoff.php on line 629

These occur when the a dropoff is being recovered by the end user, on a ~4GB file, this generated 562,000 lines in the apache error_log.
Can it be fixed ?

Stuart