So, I finally got my new midi keyboard in a couple days ago and had some latency issues. Being completely new to this, I thought the crackling was just a problem with the drum kit I bought, so I spent an hour or so playing with the FX to see what would fix it. Eventually I noticed the delay and figured that it and the crackling were connected, so after a bit of research and figuring out the drivers and everything, I had it down to 40 ms with no crackling (might've been able to go lower, was busy testing out the sounds in the drum kit though). It was working great until I closed my laptop, opened it again, and found that the keyboard refused to work at all. Now, when I open up a new file, I can see the playback meter moving on the MIDI track that comes up automatically, but when I open up a Session Drummer 3 track I get no response. I looked for a solution for hours last night, and now I really have no idea. Anybody ever have any problems like this..? I'm using an M-Audio Axiom 49, by the way.