I hope that somebody knows an explanation of the following:

I am trying to connect to SYBASE System 11 SQL Server
(NT 4.0 platform) using Sybase System 11 ODBC Drivers
or INTERSOLVE 2.12 ODBC Drivers for NT. Works fine until I try to disconnect from SQL server. NT generates a system error (GPF ?) saying 'Access Violation in VFP...'
and VFP3.0 or 5.0 crashes together with SQL Server.
It happens also in VB 4.0 using same ODBC Drivers and never happend in Delphi 2.0 using native Sybase connection. So the problem is in ODBC (?), but how to solve it?