emusonacid! legacy

Hi,

i just got this sampler
i can't make those main outs stereo
they both give me mono signals (i mean they both give me the same signal, i don't have an L or R signal)
very annoying for special Panning delay effects etc...

I looked on the files but i stay unable to get the solution
I confess i act as a newbie with this device

Can anybody help me?