No sound

Hi all, first time user user here (Kore Player on os x) and I've just downloaded it, and opened it, but there is no sound! My sound works fine on everything else, but there is just nothing coming from this program... any ideas?

Thanks in advance
brohter o


*edit: some more info if that'll help:

I'm using it on my new macbook pro. I'm trying to use it as a standalone player. I don't have a midi controller keyboard, just want to play around on the synth a bit before I get one.

Currently, my Audio and Midi Settings are:

AUDIO
Driver: Core Audio
Device: Aggregate Device (2 in, 2 out)
Status: Running
Sample Rate: 44100
Latency: 512 samples

ROUTING
Inputs:
In 1 L - 1 Aggregate Device in 0
In 1 R - 2 Aggregate Device in 1
Outputs:
Out 1 L - 1 Aggregate Device out 0
Out 1 R - 2 Aggregate Device out 1

MIDI
Inputs:
Device Name: Native Instruments Kore Player Virtual Input, Status: Off
Outputs:
Device Name: Native Instruments Kore Player Virtual Output, Status: Off

 

D'oh

OK I see why no one has replied to my foolish query...! It needs a MIDI input. I thought that in stand-alone mode you could just use musical typing, like in Garageband, but I suppose it doesn't support that. Anyway, I'm using it in GB and am very pleased with it!