Jim: This may be a long shot, but we have had some situations where customers using the midisport 4x4 needed to connect it to a powered usb hub. There may not be enough power coming from the usb bus, especially if you have other usb devices e.g. printer, scanner, thumb drives, or dongles connected to your system. Also, are you using the latest drivers for your delta card? Gord ----- Original Message ----- From: Jim Jackson To: ddots-l@xxxxxxxxxxxxx Sent: Friday, May 16, 2008 9:55 AM Subject: [ddots-l] Reposting! Odd behavior. I'll try again. Hello all, I've have a project where I used patterns from the session drummer for my drum track, and bass and piano tracks using the TTS. I was in the middle of recording the piano track while playing back the drums and bass tracks when the piano and bass tracks just froze. The drum track continued to play but while pressing the keys I could get no sound and the bass track also stopped playing. I previously noticed a lagging at times as I played and or recorded on the piano track. I'm using CT 6.2 with the update, Sonar 6 Producer, JFW 8.0. I have connected to the PC, a 1212 Mackey mixer, delta 1010 sound card, a midi sport 4x. Any help would be appreciated. Thanks