In SQL Server 2008 R2 Standard Edition:
SELECT @@version
Microsoft SQL Server 2008 R2 (SP1) – 10.50.2500.0 (X64) Jun 17 2011 00:54:03 Copyright (c) Microsoft Corporation Standard Edition (64-bit) on Windows NT 6.1 (Build 7601: Service Pack 1)
with non-express edition tools:
Microsoft SQL Server Management Studio 10.50.2500.0 Microsoft Data Access Components (MDAC) 6.1.7601.17514 Microsoft MSXML 3.0 6.0 Microsoft Internet Explorer 9.0.8112.16421 Microsoft .NET Framework 2.0.50727.5448 Operating System 6.1.7601
running on Windows Small Business Server 2011 Standard 64-bit:

Against a database in SQL Server 2000 compatibility mode:

If I try to run the Index Usage Statistics report I get the error:

How to make it go away?
I threw in every red herring I could think of. There should be enough extraneous information that everyone can throw out a theory.
The various reports in SQL Server Mgmt Studio make use of DMV (dynamic management views) like the
sys.dm_db_index_usage_statsto fetch their data.Those DMV are only available if you’re running on compatibility level 90 (SQL Server 2005) and up. You won’t be able to get this to work if you’re stuck in SQL Server 2000 compatibility level (80), unfortunately.