SSIS 2008 Package Causes Status Code 4

Hi,

I've created an SSIS 2008 package that contains several data flow tasks.  Each tasks takes data from a SQL Server 2008 database, runs a select statement to gather the data and inserts the data into a comma delimited flat file.

When I run the package, I receive the following error:

[Customers Flat File [196]] Error: Data conversion failed. The data conversion for column "LastName" returned status value 4 and status text "Text was truncated or one or more characters had no match in the target code page.".

I've researched this and adjusted the package such that the input field length is now 100 and any bad rows are being sent to a separate file.  The error still persists.

In SSMS, I wrote a query:

SELECT MAX(LEN(dbo.Customer.LastName)), dbo.Customer.LastName 
from dbo.Customer 
group by LastName
order by MAX(LEN(dbo.Customer.LastName)) desc

This returns records with the longest length of 26, well below the 100 set as my input field length in SSIS. 

The query I'm running in SSIS data flow is as follows:

SELECT     
dbo.Customer.Email, LEFT(dbo.Customer.FirstName, 100) AS FirstName, LEFT(dbo.Customer.LastName, 100) AS LastName, dbo.Customer.Gender, dbo.Customer.DateOfBirth, dbo.Address.Zip, dbo.Customer.CustomerID, dbo.Customer.IsRegistered
FROM         
dbo.Customer INNER JOIN
dbo.Address ON dbo.Customer.CustomerID = dbo.Address.CustomerID 
INNER JOIN
dbo.Orders ON dbo.Customer.CustomerID = dbo.Orders.CustomerID
WHERE     
(dbo.Orders.OrderDate >= CONVERT(DATETIME, '2009-01-01 00:00:00', 102))
GROUP BY 
dbo.Customer.Email, LEFT(dbo.Customer.FirstName, 100), 
LEFT(dbo.Customer.LastName, 100), dbo.Customer.Gender, dbo.Customer.DateOfBirth, 
dbo.Address.Zip, 
dbo.Customer.CustomerID, 
dbo.Customer.IsRegistered

What must be done to correct either the data flow or the query therein so that the error is resolved?

Thanks,

Sid