Assign method does not work from TMemo.Lines to NText field

I am migrating from D5 Enterprise to D2006 Enterprise.

My application uses SQL server (2005) through a TADOTable.

In Delphi 5, if I use the assign method to copy the lines from a TMemo 
object into a SQL NText field, it works perfectly. An example expression 
would be:

ADOTable.FieldByName('TestField').Assign(Memo.Lines);

Where "TestField" is defined as NText in SQL Server.

In D2006, this assigns absolute jibberish to the NText field.

I have applied all D2006 updates and hot fixes through #13....but the assign 
method still does not work.

Richard Stephens 

I found that if I create a TDBMemo field and point it to my TADOTable 
"TestField" NText field, that the following will work:

DBMemo.Lines := Memo.Lines;

However....I believe that I should have been able to continue to use the 
assign method:

ADOTable.FieldByName('TestField').Assign(Memo.Lines);

...as I did before in D5.


Richard