Data Structure in DEBUG Mode

Buenos días!

I have a situation ... and I know is so simple... well, here it goes.

I have a file:
FIMHistz5  IF   E           K DISK

And a data structure pointing to it:
DDS_Hist        e ds                  extname(imhistz5)

I do access the file:
C     IM_Key        setll     IMHistz5
C                   Dou       *In80
C     IM_Key        Reade     IMHistz5

After I read the file, I try to display DS_Hist but instead of having data, I
have garbage, like:
AJAAFZ OF DS_HIST = 'AA9500D3307    '
AJACJS OF DS_HIST = '1  '
AJC9NB OF DS_HIST = 4040404.
AJDANB OF DS_HIST =       .
AJAAKG OF DS_HIST = ' '
AJADZH OF DS_HIST = 404.
AJAB7D OF DS_HIST = '          '
AJABMO OF DS_HIST = 'IW'
AJAANP OF DS_HIST = '       '
AJADZR OF DS_HIST = 0404040.404
AJAB43 OF DS_HIST = 40404040404.0404
AJAAQ2 OF DS_HIST = 4040404.
AJADZS OF DS_HIST = 0404040.404

I just have a chance to display the first two fields and field #8 (AJABMO)
because those are the ones I loaded in order to do the setll/reade and field #8
is mentioned in the calculations.  I should be able to display the whole record.
The worst thing is that I have done this before and maybe I can't remember
because today's date (Monday) or because I still have on mi mind the fireworks
of July 4th.

What I am doing wrong?

Thanks in advance!
Peter Vidal
PALL Aeropower Corp.
Senior Programmer Analyst