That's because you have your Blahs and Jacks in the wrong places. They need
to go on the same line and the line feed needs to be included between the
quotes.
{ IF { MERGEFIELD Blah } = "Jack" "Jack
" }{ IF { MERGEFIELD BlahBlah} = "Jack" "Jack
" }{ IF { MERGEFIELD BlahBlahBlah} = "Jack" "Jack
" }

Signature
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Graham Mayor - Word MVP
My web site www.gmayor.com
Word MVP web site http://word.mvps.org
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Thanks this is much better and suppresses empty fields BUT now I am getting
the spaces at the end - the list is quite long with, say, 10 lines but if
there are only a couple that is all the space I want devoted to it
Yve
> That's because you have your Blahs and Jacks in the wrong places. They need
> to go on the same line and the line feed needs to be included between the
[quoted text clipped - 36 lines]
> >>>
> >>> Yve
Graham Mayor - 04 Sep 2006 07:16 GMT
The construction does not add any lines unless there is content in the
fields. These fields all go on the same line, immediately after and on the
same line as the field they follow. The next field goes immediately after
the construction.
Essentially you have
{Mergefield afield { IF { MERGEFIELD Blah } = "Jack" "Jack
" }Continue here
If there is nothing in the field Blah you get
{Mergefield afield} Continue here

Signature
<>>< ><<> ><<> <>>< ><<> <>>< <>><<>
Graham Mayor - Word MVP
My web site www.gmayor.com
Word MVP web site http://word.mvps.org
<>>< ><<> ><<> <>>< ><<> <>>< <>><<>
> Thanks this is much better and suppresses empty fields BUT now I am
> getting the spaces at the end - the list is quite long with, say, 10
[quoted text clipped - 50 lines]
>>>>>
>>>>> Yve