help me get started with schope

Hi, after seeing your Schope plug in recommended in Sound On Sound magazine I downloaded the demo version. I’ve tried placing it in both library locations (system and my home directory). But, although it is listed as an available plug in when I try and access it via my mixer window in Logic (I’m running Logic 7), it won’t load. Instead I get an error message saying ‘Error code -1 was returned by the CoreAudio driver’. A search of your forums (and a general googling of things like ‘schope logic error code -1 coreaudio’ etc) has as yet revealed no relevant threads, so, can someone enlighten me as to what’s wrong, and how to fix it,

thanks, seb