I'm still working with a several year old 722 vip receiver which still operates very well. Once in a while I plug in an external hard drive to archive saved recorded videos I've meade on the 722. Sometimes the receiver acknowledges the hard drive and sometimes it does not. I've decided to keep the external hard drive permanently plugged into the receiver so I don't take the chance of not having it connect every time I want to download something to it. Is there any problem with doing this?