Need some help here. Our TiVo Roamio won't start. On the front panel, the lights flash in an alternating pattern: quick blue/red together, then green for 1-2 seconds, over and over. We replaced the internal hard drive a few weeks ago by ourselves, because the TiVo kept rebooting and the front panel light pattern seemed to indicate a problem with the original drive. (I can't remember what that pattern was now.) Since replacing the drive, the TiVo has occasionally spontaneously rebooted, and the TiVo sound effects have only intermittently worked. Then, this morning, the TiVo kept spontaneously rebooting. I unplugged it and when I plugged it back in, I got the light pattern above and it wouldn't start. I called TiVo customer support and they said this was a hard drive problem. But I found a post (Flashing Lights...Green on then off...Blue & Red simultaneously on then off...repeat...repeat...) that said this problem and light pattern can be fixed by replacing the power supply. Anyone know if that's the case? Or any other ideas?