Android :: How To Implement Detail Notification

I'm trying to write a program that manages a form of messages, and these messages are received from an external data source. This all works. However, the problem comes when I try to notify the user: I would like to have the notification jump directly to the message when it is touched, but this seems to mess up the back stack. This is probably best explained by example:

I open up the message list, the main activity, and browse for a while.
I hit home and go into another app (let's say Music).
A new message is received. A notification comes up, which I touch. The message detail view is displayed.
Now I hit Back. What I want to have happen is that I return to Music, but unfortunately, Back sends me to the message list, and then hitting Back will return me to music.

The both the list and the detail activities are marked as "singleTop", and the exact flags that I use for the notification Intent are:

FLAG_ACTIVITY_NEW_TASK
FLAG_ACTIVITY_CLEAR_TOP
FLAG_ACTIVITY_SINGLE_TOP

I figure if the Messaging application can do this, why can't I?