Would say my 922 has never worked as solid as my old receivers that were replaced. I have been putting up with the growing pains the 922 receiver has been going through. Things have been going rather well until the other day. The unit will now completely lock up and become unresponsive after it has been idle. This requires a hard reset to get it working. It was normal for the 922 to reboot 3 or 4 times before a picture would show but now it reboot itself 7 if not more times. I am not 100% sure but I am thinking the cooling fan has gone out. Is there anything else I can do to trouble shoot before I start the process of getting this 922 replaced?