Gentoo Prefix (emerge) not recognizing root on Interix

[AKF_SDS]

When running Gentoo Prefix as root on Interix v3.5 for Windows XP I'm receiving strange permission errors.

root@computer buzz # emerge foo
emerge: superuser access is required
root@computer buzz # sudo emerge foo
emerge: superuser access is required

How is running from root and running with sudo not considered superuser access?

[AKF_SDS]

note:
I've verified that uid=0.

root@computer buzz # echo $USER
Administrator
root@computer buzz # id -u Administrator
0

[AKF_SDS]

SOLVED: solution found here