Delphi3 vs Oracle73 - TDBMemo or BDE Caching problem

Hi there!

I try to develop a press editors application using Delphi 3 CS and
Oracle 7.3.2. This application consists of more than a hundred forms and
raports. So to avoid consuming a lot of MS Windows resources all forms
are created dynamicaly. But sometmes (!!!) during form creation I
receive Access Violation error during Form.OnCreate event. Form creation
events works good and stable when TDBMemo components are disconnected or
TBDEDataSet.CacheBlobs := FALSE. All memo fields type are of
VARCHAR2(2000).
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Question:
Can someone help me? How to solve or workaround this problem which
appears without any found definition (appears frequently when one form
creates new one)???
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Reards
Ignac