Interesting. It appears that my issue has nothing to do with the volume block issue since I am not using a controller. I will say that since posting, I've played for hours and only had it hiccup twice. If the dropout only occurs at that rate, it would seem to indicate that it's not a hardware issue. I will keep an ear on it, I have until the end of the month to return the unit - WHICH I DON'T WANT TO DO! :)
Thanks for the replies and input, I appreciate it.