diff --git a/lib/CA.pm b/lib/CA.pm
index f1f2407..b83121a 100644
--- a/lib/CA.pm
+++ b/lib/CA.pm
@@ -99,6 +99,7 @@ sub open_ca {
 
    my ($i, $cnf, @lines, $oldca, $index, $bak, $t);
 
+   main::printd("Opening ca $opts->{'name'}");
    GUI::HELPERS::set_status($main, _("  Opening CA: ").$opts->{'name'});
    while(Gtk2->events_pending) {
       Gtk2->main_iteration;
diff --git a/lib/GUI.pm b/lib/GUI.pm
index e8d07af..83bb4b2 100644
--- a/lib/GUI.pm
+++ b/lib/GUI.pm
@@ -60,6 +60,8 @@ sub new {
 
    bless($self, $class);
 
+   my ($section, $x, $y, $w, $h);
+
    $self->{'version'} = '0.7.6';
 
    $self->{'words'} = GUI::WORDS->new();
@@ -111,7 +113,16 @@ sub new {
    $self->{'mw'}->set_title("TinyCA2 Management $self->{'version'}");
 
    $self->{'mw'}->set_resizable(1);
-   $self->{'mw'}->set_default_size(850, 600);
+   $section = $self->{'init'}->{'cfg'}->{window};
+   if(defined($section->{x}) && defined($section->{y})) {
+	   # save position for later use after show_all()
+	   $self->{'posx'} = $section->{x};
+	   $self->{'posy'} = $section->{y};
+   }
+   $w = $section->{w} // 850;
+   $h = $section->{h} // 600;
+   main::printd("Sizing window to $w,$h");
+   $self->{'mw'}->set_default_size($w, $h);
    $self->{'mw'}->signal_connect( 'delete_event', 
          sub { HELPERS::exit_clean(0) });
 
@@ -1350,7 +1361,15 @@ sub show_req_dialog {
    $reqtable->attach_defaults($label, 0, 1, 13, 14);
 
    $radiobox = Gtk2::HBox->new(0, 0);
-   _fill_radiobox($radiobox, \$opts->{'bits'}, %bit_lengths);
+   # use config if present
+   main::printd("preparing radiobox for type " . $self->{'CA'}->{'cfg'}->{global}{default_req_type});
+   my $bits = \$opts->{'bits'};
+   if ($self->{'CA'}->{'cfg'}->{global}{default_req_type} eq 'user') {
+	   $bits = $self->{'CA'}->{'cfg'}->{user}{default_bits} // \$opts->{'bits'};
+   } elsif ($self->{'CA'}->{'cfg'}->{global}{default_req_type} eq 'server') {
+	   $bits = $self->{'CA'}->{'cfg'}->{server}{default_bits}// \$opts->{'bits'};
+   }
+   _fill_radiobox($radiobox, \$bits, %bit_lengths);
    $reqtable->attach_defaults($radiobox, 1, 2, 13, 14);
 
    $label = GUI::HELPERS::create_label(
diff --git a/lib/GUI/HELPERS.pm b/lib/GUI/HELPERS.pm
index 4b4ba15..daddc53 100644
--- a/lib/GUI/HELPERS.pm
+++ b/lib/GUI/HELPERS.pm
@@ -477,7 +477,8 @@ This functions returns nothing;
 
 opens a FileChooser dialog to select files or directories. $entry is a
 reference to the variable, where the selected path shall be stored. If $mode
-is set to "open", then only files with appropriate suffixes are displyed.
+is set to "open" or "key", then only files with appropriate suffixes are
+displyed.
 
 =back
 
diff --git a/lib/GUI/TCONFIG.pm b/lib/GUI/TCONFIG.pm
index 150e241..3584ea1 100644
--- a/lib/GUI/TCONFIG.pm
+++ b/lib/GUI/TCONFIG.pm
@@ -86,6 +86,11 @@ sub show_configbox {
 
    $box->add($box->{'vbox'});
 
+   # Experts warning top label
+   $label = Gtk2::Label->new();
+   $label->set_markup("<span foreground=\"red\"><b>" . _("Experts only!"). "</b></span>");
+   $box->{'vbox'}->pack_start($label, 1, 1, 8);
+
    $box->{'vbox'}->pack_start($box->{'nb'}, 1, 1, 0);
 
    $buttonbox = Gtk2::HButtonBox->new();
diff --git a/lib/HELPERS.pm b/lib/HELPERS.pm
index 8070949..d0df3dd 100644
--- a/lib/HELPERS.pm
+++ b/lib/HELPERS.pm
@@ -53,6 +53,34 @@ sub read_user_cfg {
    return ($cfg);
 }
 
+sub update_user_cfg {
+   my $gui = shift;
+   my ($section);
+   my ($x, $y, $w, $h);
+
+   ($x, $y) = $gui->{'mw'}->get_position();
+   ($w, $h) = $gui->{'mw'}->get_size();
+
+   if(defined($gui->{'init'}->{'cfg'})) {
+	  $section = $gui->{'init'}->{'cfg'}->{window};
+	  $section->{x} = $x;
+	  $section->{y} = $y;
+	  $section->{w} = $w;
+	  $section->{h} = $h;
+	  $gui->{'init'}->{'cfg'}->write($ENV{HOME}."/.tinycarc", 'utf8');
+   } else {
+      # no user config yet, create new one
+      my $newcfg = Config::Tiny->new();
+      $newcfg->{window} = {
+         x => $x,
+         y => $y,
+         w => $w,
+         h => $h
+      };
+      $newcfg->write($ENV{HOME}."/.tinycarc", 'utf8');
+   }
+}
+
 # 
 # generate filename from Subject-DN
 # 
diff --git a/tinyca2 b/tinyca2
index 1b39b3d..692303b 100755
--- a/tinyca2
+++ b/tinyca2
@@ -100,11 +100,20 @@ if( exists $ENV{'TINYCA_EXPORTDIR'}) {
 
 umask(0077);
 
+# read user config
+$init->{'cfg'} = HELPERS::read_user_cfg();
+$init->{'debug'} = (($cfg->{global}->{debug} // '') eq 'true') ? 1 : 0;
+printd('Debug mode enabled');
+
 # create main object and initialize CA
 my $gui = GUI->new($init);
 
 # and now run...
 $gui->{'mw'}->show_all();
+if(defined($gui->{'posx'}) && defined($gui->{'posy'})) {
+   printd("Moving window to $gui->{'posx'},$gui->{'posy'}");
+   $gui->{'mw'}->move($gui->{'posx'}, $gui->{'posy'});
+}
 
 # decide what to do on startup
 if(@{$gui->{'CA'}->{'calist'}}) {
@@ -119,7 +128,14 @@ sub _ {
    return($s);
 }
 
+sub printd {
+   print STDERR "DEBUG: @_\n" if $init->{'debug'};
+}
+
 Gtk2->main();
 
+HELPERS::update_user_cfg($gui);
+
+printd("normal exit in main");
 exit(0);