Well... I don't know the DM-3200, or your computer specs, or your buffer settings, so it's a little hard to trouble shoot.
Firstly, look at your buffer settings. If you're not using "input monitoring", then increase them.
Secondly, maybe try recording at 44.1kHz or 48kHz.
Thirdly, list your computer specs in your profile's signature, and I'm pretty sure someone will be able to sort your recording problem out.