Binding a value with the ODBC driver with more than 127 characters will fail with MS SQL Server 7.0

When connecting to MS SQL server 7.0 database using (QODBC) then calling stored procedures does not work correctly. When doing the following

QString text;
text.fill(' ',2000); //QString
qry.bindValue(2,text);

the query will fail for any value greater than 127. lastError() returns the following string

error. Check your network documentation. QODBC3: Unable to execute
statement.

This worked in Qt 3.3.

The problem does not happen with MS SQL Server 2005 .