Problems with ODBC in VB

When using Informix-Connect 32 ODBC driver to connect to Informix 7=2E23 on= HPUX 10=2E2 from VB5 application it looks like SET ISOLATION TO DIRTY READ does not work=2E When I check query on the server is says isolation level Commit= ed Read=2E Any idea what is going on??? __________________________________________________ This message is intended only for the use of the=20 Addressee and may contain information that is=20 PRIVILEGED and CONFIDENTIAL=2E If you are not the intended recipient, you are hereby notified that any dissemination of this communication is strictly prohibited=2E If you have received this communication in error, please erase all copies of the message and its attachments and notify us immediately=2E Thank You=2E __________________________________________________