ColdFusion 4.5.1 SP2: Solaris 'en_US' Locale Installation Required
Customers using ColdFusion 4.5.1 SP2 on a Solaris platform should be aware of this bug, which requires them to have the "en US" locale installed on their Sun Server no matter what locale they are from. For more information, see the link below.
ColdFusion 4.5.1 SP2: Solaris "en_US" Locale Installation Required