I have a question about using arco and pizz commands in stringparts. I use sibelius 3 and have already installed the switch plugin, and used it on my own string quartet score. I loaded the Dry/sections strings/violins 1/vlns1/KS combo in the first slot in GP Studio on channel 1, but in Sibelius I only hear a tremelo stringsound, not a pizz or arco sound. Also, after using the GPO keyswitch plugin in Sibelius, the stringsound is disturbed, it seems that there is an extra line playing alone the original, but a semitone lower. How can I get all this fixed? All I want is to hear my strings playing their pizz and arco at the right moments.