I have a table that is being accessed using an Embedded Server via
ADO. It works fine except I get the following error when I perform a
simple query with a condition on a Char or varchar field.

eg SELECT * FROM MyTable Where MyCharField = '8'
or SELECT * FROM MyTable Where MyCharField LIKE '8'
etc

MyCharField is definitely Char or VarChar and not a BLOB

I'm using FB1.5 RC6

Fetch failed.
SQLCODE=-802:
arithmetic exception, numeric overflow, or string truncation
Implementation of text subtype 53 not located.
IBCODE=isc_arith_execpt.

Any Ideas?
Peter Gore