>>Keypress is the event representation of GRID or COMBO controls :-) BUGgy but can't leave w/o them. Somethimes it asks me to add DODFEAULT() w/o NODEFAULT and just when I thought I figured out what happens that event changes its mind and start behaves differently :-)
>
>:-))

BTW, in fact it enters in the IF
I just tried this, Add 3 other textboxes in the form and change Keypress event of the Text1 to be:

LPARAMETERS nKeyCode, nShiftAltCtrl
thisform.Text2.Value = nKeyCode
thisform.Text3.Value = IsAlpha(Chr(nKeyCode))
thisform.Text4.Value = []
if IsAlpha(Chr(nKeyCode)) AND nKeyCode=>0 && Remove the first && to see the bug
   thisform.Text4.Value = [Here -]+Chr(nKeyCode)
   DoDefault(Asc(Upper(Chr(nKeyCode))))
   NODEFAULT
ENDIF

When I press [d] textbox4 value is [Here - d] but TextBox1 Value is w/o [D] in it.
So maybe some binary operations are involved between two parameters before they are sent back to KeyPress Event.