Yeah, my alarm is doing the exact same thing. I have an htc. Thank God I woke up on my own this morning, or I would have been late to work. I got a software update last night at about this time, and for ~ 24 hours I had the following issues:
-alarm didn't make the sounds it thought it was making (it made none)
-I couldn't hear anyone over the phone (and it would not let me hit speaker phone, it just didn't acknowledge that I was trying to hit the button, and this was not when it was "dialing" it was when it was "ringing")
-I was not allowed to play youtube videos (something about a file not allowed on my device; I am just now able to play these). This was even after refreshing, which had worked in the past
I made no changes in volume or anything like that. 30 minutes ago I attempted 2 phone calls with the same issues. while typing this out, I attempted to play a video on youtube, and it worked! and now everything works.
I don't know if these were related to the update, but they were frustrating.
This phone has been pretty irritating since I got it. My brother has the same phone and doesn't have any of my issues, he has a number of other ones. Like when is phone is charging, if he receives a text message / news update / touches the phone, it stops charging. Which is less than convenient.
Have had the phone for about a month, and am thinking about going back to the droid.