I'm using Sibelius 7 and I haven't used it in about 2 years so I feel like a newbie (almost). I have two questions. The first has to do with my midi controller which goes into my iMac computer via my Midiman Midisport 2x2 interface. Everything looks fine in my Audio/Midi Setup. The problem is when I press a key on my midi controller I get a popping sound when the key comes "up" not when I press down. So how do I get rid of the popping sound? Question two is related to Sibelius. Since I have a very basic set up I want to use the internal sounds in Sibelius. (piano, violins trumpets, etc). How do I do that? Thanks for your help.