help needed solving DNS puzzle (possible referral loop)

[teague-nospam-x at admvax.lynchburg.edu]

Microsoft DNS running under Windows NT Service Pack 5
is intermittently failing to translate domain "retroweb.com" which
is hosted by domain hosting service smarthosting.com.

This can be observed by attempting to translate retroweb.com
via lcol-cain-pdc.lynchburg.edu and then translating via non-MS
DNS server acavax.lynchburg.edu