String truncation when calling stored procedures from Active Server Pages

[Kevin Hatcher]

Can anyone help.

I am trying to call an SQL stored procedure from VB Server side script
in an active server page (.asp).

Everythings O.K. except when I try to pass a string longer than 256
characters to a stored procedure which takes it as a text parameter and
inserts it into a field of type text ( lenght 16).

The error message I get when the stored procedure is called is

[Microsoft][ODBC SQL Server Driver]String data right truncation

I've been told to give up and not use an text data type but I'm sure
there must be a way...