I'm working on my first project with jME and looking forward to many more…
I'm currently working on the mouse, and I've run into my first issue.
I want to be able to click somewhere in my scene and have a box I have in my scene move there.
My screen scrolls and rotates. (I use a relative mouse for rotating, and I move my screen when the mouse gets near an edge)
I'm having trouble getting where exactly in my world the mouse clicked.
At first, I could only get the center of the screen plus a little, but I've now figured out that "plus a little" needed to be multiplied by the camera location z, which I did, but now I have a problem with rotation…
When I rotate, my method doesn't work at all… I've been stuck on problems with the mouse for quite a while, and if someone has a snippet of how it's done, that'd let me move on to something else, finally 
Thanks for your time and your help!