I tried searching the forums as well as google, however have yet to find any mention of my problem.
I have an 8700r running OS 4.1.0.346 and I noticed when I send PIN messages, it shows the D receipt, however does not show the R receipt.
It's been like this for quite some time... probably since the upgrade. I don't use PIN as much so on the few instances I noticed this, it wasn't a big enough deal for me to ask, but I've started using PIN more and more, and it bugs me to know something isn't working.