How do I get proper L/R mix?

[Digital-Aura]

Problem: I am still hearing left panned sounds in my right monitor and vice versa.
Set up: I have a PreSonus AUDIOBOX USB and I have two (left and right channel) outputs ... I'm feeding that into small Behringer mixer which I assumed was set up for mono on the 1 and 2 inputs because the other inputs say 3/4, 5/6, 7/8, 9/10.
(I assume panning one pot full left and the other full right isn't the right idea)

How should I be doing this to hear true stereo.

[Etienne1973]

...
(I assume panning one pot full left and the other full right isn't the right idea) ...

Seems exactly the right thing to do! I would feed DAW stereo output into one of the Behringer mixer stereo channels. Anything speaks against that?

[Digital-Aura]

hmm.. ok ok. I guess I was just expecting someone to slap my wrists and inform me that there was something I missed. Thanks Etienne.