In Access 2000, when you run aggregate functions against decimal data types that appear in tables linked from an ODBC data source, you may receive the following error message:
"The Decimal field's precision is too small to accept the numeric you attempted to add."
To resolve this problem, install the latest Jet 4.0 service pack.
For additional information about how to obtain and how to install the latest Jet 4.0 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
How To: Obtain the Latest Service Pack for the Microsoft Jet 4.0 Database Engine
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Jet 4.0 Service Pack 6 (SP6).