Iternal table fields in New debugger

Hi...

I Have two questions on New debugger..

1st:

My code is:

data: begin of itab occurs 0,
      f1, f2,
      end of itab.

itab-f1 = 'f1'.
itab-f2 = '1'.
append itab.
clear itab.

itab-f1 = 'f2'.
itab-f2 = '2'.
append itab.
clear itab.

write:/ itab[1]-f1,
        itab[1]-f2.

Why I am getting error for this like:

Field itab[1] is unkown....

Where as we can get values and 1 for above two variables, itab[1]-f1 and itab[1]-f2....in DEBUGGING MODE.

Let me know the reason ?

What are the additional functions loading in DEBUGGER to get values for these?

2 nd:

[Aswer my Question in this thread|Deleting a record-Debugging;

Thanks,

Naveen.I