Anyone had any power-up problems with this model?

I've had one for a couple of days and I think it's faulty :-(

It randomly fails to come out of stand-by.

I've followed the trouble shooting guide and checked all the speaker wirings twice over.

The unit has been running fine apart from this but for what ever reason when it decides not to come out of standby and power up properly the thing is dead in the water.

Will probably return to the retailer tomorrow..

Paul