I have all my drivers correct, sometimes it will play back a track i have recorded but only for a few times and if i make a new track it will usually wont play back. This only happens when i have my headphones plugged into my fasttrack c600, i use cubase 5. If you need more info ask.
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Have you set up Cubase to actually use the Fast Track as an output?
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Quote by DisarmGoliath
You can be the deputy llamma of the recordings forum!
Check your Device Setup (as ChemicalFire said) and if the fasttrack is enabled go into advanced settings and make shure the routings are ok.

Make shure you're not overloading your ASIO - thats the far left meter on the transport bar.

Tell us if anything helped.
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