I have a datetime dimension (built manually) that goes down to the day level.
The problem is that the uniquename for 12/31/2000 is 1/1/2001. Here's a
snippet of a "debugtofile" looping through the cellset:

[Time].[Year].&[2000].&[Q4 2000].&[2000]&[12]&[Dec
2000].&[2000-12-29T00:00:00]
[Time].[Year].&[2000].&[Q4 2000].&[2000]&[12]&[Dec
2000].&[2000-12-30T00:00:00]
[Time].[Year].&[2000].&[Q4 2000].&[2000]&[12]&[Dec
2000].&[2001-01-01T00:00:00]
[Time].[Year].&[2001].&[Q1 2001].&[2001]&[1]&[Jan 2001].&[2001-01-01T00:00:00]
[Time].[Year].&[2001].&[Q1 2001].&[2001]&[1]&[Jan 2001].&[2001-01-02T00:00:00]

The year 2000 is a Leap Year, but the problem does not affect the year 2004
(also a Leap Year).
The ".FormattedValue" for the member is "12/31/2000" (which is correct).
Using SQL Man. Studio to access the cube returns "12/31/2000".
The underlying dimension SQL table has the correct info in it.

The OLAP db is SSAS 2005, running on either Itanium or X64 (both exhibit the
problem), Windows 2003 Server Ent.
The front-end is Microsofts AnalysisSvcsWebCient/CubeMain.asp (minimally
updated for SSAS 2005).

Anyone have any ideas?

Thanks!
--
Bob Hodgman