I decided a few days ago to try to use my N810 as my alarm clock in the morning. I plug it in to the charger at night, check to make sure the alarm is set. I watched a video just before bedtime so I know the sound worked. When the alarm went off the next morning, there was no sound. I was almost late for work. I checked the volume settings everywhere and they were all turned up. I had no sound at all, not even screen taps or music. Finally had to reboot the device, and sound came back. Same thing happend next day. Sound just quits during the night. I know it's possible that I could have installed something new and screwed it up myself, but this is only my first week with the tablet and I'm just anxious to try the different apps. Just wanted to see if anyone else has seen this problem and fixed it. Thanks for any help I can get! This is a really cool device!

have you tried using the radio alarm clock instead, that worked for me!

I'm not familiar with that program, but the problem is more than just the alarm. The sound for the entire device just quits and won't work until I reboot it.

Ok, well, I did some more troubleshooting last night and found out that it is the alarm clock program that is (apparently) causing my problem. I have sound up till the point that the alarm goes off. As soon as the alarm goes off, my sound goes out completely and I have to reboot to get it back. I guess it still could be one of the apps I installed that could have caused the problem. Maybe I just need to find another clock program that will let me set alarms and use that. Any suggestions?