Can't import dumpfile

I’m trying to import a dump file of our rt database to my workstation.
Everytime I try to run the following command:
mysql -u root rt3 < rt3.sql

I get the following error:
ERROR 1005 (HY000) at line 23: Can’t create table ‘./rt3/ACL.frm’
(errno: 121)

Is there something I don’t know about dump files that I’m missing?

Mathew Snyder