what's goin wrong?

i've been pissing about with reaktor 5 trying to get a handle on it, some lovely synths in there but theres something wrong which means that every time i play a note theres a little click, i've tried changing the audio drivers and all that craic but nothing seems to work, here is a brief example of what i'm talking about using carbon 2 with some kinda aphex patch using the most obvious melody i could think of

amp envs are too quick; increase the attack value of the amp env..

then start thinking of new melodies..

or for starters you can try syncing the OSC to gate.