Certain group of channels do not tune in on one of my cable boxes.

I have three cable receivers (one HD DVR and 2 standard HD).  One of the standard HD receivers will not show the 300 channels.  I've called and they asked me to reboot by unplugging, which I did.  The problem went away until the next TV viewing session.  I shouldn't have to reboot the receiver each time I want to watch channels in the 300 range.  Can I just get a receiver that works?