I am still experiencing problems with freeze ups and spontaneous reboots (at least 6 within 3 hours watching Big Ten Net HD). Yesterday, I did some diagnosis and found that the HDMI diagnosis was reporting Raw EDID Blocks 2 thru 7 (Checksum FAILED!). I then disconnected the HDMI and hooked up component cables. This helped, but I have experienced at least three lockups since then. My 622 has not experienced any of this and all is fine with it (no checksum failures). My hope is that this will be corrected soon, but my patience is wearing thin. C'mon Dish fix this soon!!!! Anyone else experiencing these problems?