Delp 5 : Access Violation when refresh SQL Anywhere table with a blob field

Environment :
Delphi 5 Client/.Serveur
SQL Anywhere 6.0

Hi,

When I refresh a TTable containing a Blob field (with Cached Updates = True)
I have an Access Violation.

This bug don't appears with a ttable without blob field.

Can anyone help?

Thanks in advance,

Emmanuel