fixes

diff --git a/user_interface/gui.pl b/user_interface/gui.pl
index bc0377945c6e41d32598decfce630990783640b9..2913639b8294753d3ffb31fb3d5750b5038f9688 100755 (executable)
--- a/user_interface/gui.pl
+++ b/user_interface/gui.pl
@@ -43,7 +43,8 @@ $hbox->pack_start($plot_button, FALSE, FALSE, 0);
 my $clear_button = Gtk2::Button->new('_Clear');
 $hbox->pack_start($clear_button, FALSE, FALSE, 0);
 
-my $windowLength_entry = Gtk2::Entry->new('100us');
+my $windowLength_entry = Gtk2::Entry->new;
+$windowLength_entry->set_text('100us');
 $hbox->pack_start($windowLength_entry, FALSE, FALSE, 0);
 
 my $setWindowLength_button = Gtk2::Button->new('_Set window length');