Hello Steve,
Often, a "type mismatch" occurs if there is an attempt to write data of one
Data Type into a field of another DataType. For example, if you have a
table field or bound control on a form which is a Number Data Type and you
try to write a text string to it.
There may be other reasons for this error appearing, so if you could post
some code and note the line on which the error occurs or give us some detail
as to what your database is doing when the error occurs, we can probably
"zero in" on a more specific cause.