Just same old "issues" or a bad box??

Hey all -
Have had the HR20 for two months. I think my wife is finally ready to throw it out the window. I am starting to get used to it, but we are still having many technical issues with the box. So, is it time to chuck this one, call D* and ask for another or are we just experiencing the same issues everyone else is?

Mainly:
1) Dropping audio on HD local shows. Video still there but we will loose audio for 5 to 10 seconds on three or four different occasions during a tv show.

2) Not playing various TV shows. The show will be recorded. We go to My VOD, hit play and nothing. Just a black screen and a time bar but no show. We press FF/RW/ Skip ahead and nothing. The show just isn't there. Oddly enough though, when we delete it, our disk space increases. System resets do not help any of our problems.

Now, I have kept a good attitude and smiling face through all of these issues, but I am getting a bit tired of it all.

What do you all think? Tech issues or bad box??

Thanks!