You could manually update the software after 10am Wednesday using the instructions here, I suggest using the Manual Update instructions simply because the process will be quicker. As Martin says you should do a Default Setting after the software update but as you've already got problems I'd be tempted to do one before as well.
The question has to be asked why your machine hasn't updated with one of the many repeat broadcasts of this software. What state do you leave the 9300 in overnight, STANDBY or do you switch OFF at the mains? If you switch OFF at the mains do you just flip the mains switch or do you allow the 9300 to shut down completely through Standby first?