illegal mix of collations

[Andy Solomon]

I get the following error when I try to update a table using the .NET connector:

Illegal mix of collations (latin1_swedish_ci, IMPLICIT) and (utf8_general_ci, COERCIBLE) for operation '=' error

I do not get errors on insert, delete or select statements. I don't get the error when using an ODBC driver. I've run the statement through the MySQL Query Browser and it returns no error either. Is there a simple solution to this error? I've tried changing the Column Charset through MySQL Administrator, but it doesn't appear to help. I'm currently running everything on my local machine.