Problem with calculated fields and memo-fields

I'm programming in delphi 2.0 and i'm using dbase-files wich is access
via the ttable-component.
I encounter problems with calculated fields when i'm trying to store the
first line of a memo-field of my dbase file in a string-field. If you
try it , the number of lines on you dbgrid is not equal to your
record-count. Each line occurs a few times.

Does anyone also encounters this problem and is there a solution for it.

Thant a lot.