I am in the process of recording a demo using Cool Edit Pro 2.0 and FL Studio. Every guitar part has been played perfectly to timing using a metronome and flows well after mixing. When I attempted to record the drums (which were also in tune with the timing of the guitar) FL Studio does not seem to play them at the same rate. In other words the drums slow down gradually and by the end of a 4 minute song are about 3-4 seconds behind the guitar. What can I do to fix this problem? Does it deal with CEP or FL Studio?