Thanks for replying

>What command is running when the error occurs? It is possible that during the command the disk gets full, but once the command is aborted the disk space it comsummed is freed up.

I'm waiting for the client to get back to me with the full error log, but its during adding a record to a transmission log table. This is typically an append on a buffered table, followed by a tableupdate wrapped in a transaction.

Regards

Malc