Ezeket probald ki:
$top=MainWindow->new();
$top->geometry('400x200+100+100');
$txt=$top->Text()->place(qw/-width 200 -height 80 -x 200 -y 100 -anchor center/);
$txt->insert(qw/end Itt_a_szoveg_slave/ );
MainLoop;

es ezt:
$top=MainWindow->new();
$top->geometry('400x200+100+100');
$txt=$top->Text()->place(qw/-width 200 -height 80 -x 0 -y 0 -anchor nw/);
$txt->insert(qw/end Itt_a_szoveg_slave/ );
MainLoop;

es ezt:
$top=MainWindow->new();
$top->geometry('400x200+100+100');
$txt=$top->Text()->place(qw/-width 200 -height 80 -x 0 -y 0 -anchor w/);
$txt->insert(qw/end Itt_a_szoveg_slave/ );
MainLoop;

es ezt:
$top=MainWindow->new();
$top->geometry('400x200+100+100');
$txt=$top->Text()->place(qw/-width 200 -height 80 -x 0 -y 200 -anchor sw/);
$txt->insert(qw/end Itt_a_szoveg_slave/ );
MainLoop;

A fentiekben csak a place parameterei valtoznak.