the solution is to draw manually the lines in the detail_print event of the report or subreport
for 2 lines at each vertical border:
me.scalemode=1
me.forecolor =0 'black line
me.line(0,0)-(0,me.height)
me.line(me.width,0)-(me.width,me.height)
so easy when you finally find it
:banghead: