When logging in for the first time after updating to The Raiser's Edge version 7.91 or 7.92, all alpha-characters must be entered as all CAPS.  Numeric and non-alphabetic characters remain the same.

Examples:

Pre-RE 7.91 passwordRE 7.91 password
nonprofitNONPROFIT
NonProfitNONPROFIT
nonprof!tNONPROF!T
nonprof1tNONPROF1T

If this does not resolve your issue and you are logging into Raiser's Edge on a computer running Microsoft Vista, Windows 7 or Windows Server 2008, refer to BB360338.