I've had an XMC-1 for a couple of years, and traded it for the XMC-2 last week. Sound quality is noticeable better, and the bass management seems better as well. Have only used it for TV, movies and Xbox so far.
The first 4 or 5 days itt was great, but the past couple of days I've experienced some stability issues, menu freezing and lock ups. Most of them have happened while I was in the menu making some changes. But the worst of them just happened in the middle of a movie with zero input from me or the remote. Not sure what triggered it. Anyone else experiencing similar issues?
The video starts about two minutes after it froze and ceased to pass audio.
Although the XMC-2 is much more stable now with firmware 2.1, mine does lock up in weird states occasionally. I've never seen your exact symptoms ... that was weird.
Do you use Video Remains On Mode? I think the longer the processor goes, being turned on and off in VRO Mode, the more likely it is to get into some lockup state. It sometimes happens to me when going in and out of menus, but sometimes it happens when the processor has been on but not playing for a couple hours.
Hard reboot is always the answer. In my case, sometimes it takes a "cold dead" reboot ... 6-second press, turn off rear power switch, pull line cord, disconnect all HDMI cables, wait 5-10min; then reconnect line cord only and turn on rear switch. If it comes up clean, reconnect HDMI. About 10% of the time now (used to be more) I still get an error on power-up, but a second attempt works. Then it's fine for a week or two.