Difficulty recording full volume with ext. audio interface

Hi all,

Long time user of Audacity first time poster.

I’ve recently purchased a Presonus Audiobox i2 audio interface for podcasting purposes.

My current setup is the audio interface connected to my computed with an AT-2020 mic connected to the interface.

My issue is that when recording on my Windows 7 PC, the volume maxes at -6 db and then starts to distort.

This issue does not occur on my mac (with the interface) or on the windows pc (when not using an interface a.k.a a directly plugged in audio-jack mic)

Any help is much appreciated regards,

Matt

Maybe this will help - [u]How can I prevent a half-volume mono recording?[/u].

The recording level in the Windows Sound Control Panel may be set too low.

Also see:
http://manual.audacityteam.org/o/man/faq_recording_troubleshooting.html#half_volume
and
http://support.presonus.com/entries/21743465-Why-is-my-recorded-signal-too-low-or-quiet-