diff --git a/templates/config.tpl b/templates/config.tpl
index bc49871..4658e19 100644
--- a/templates/config.tpl
+++ b/templates/config.tpl
@@ -18,10 +18,7 @@
 *}
         <dl class="config">
             <dt><label>Objet (but) de l'association</label> <b title="Champ obligatoire">(obligatoire)</b></dt>
-            {input type="textarea" name="objet_asso" source=$plugin.config label="" required="required" cols="50" rows="6" maxlength=300}
-            {*
-            {input type="text" name="objet_asso" source=$plugin.config label="" required="required" maxlength=300}
-*}
+            {input type="textarea" name="objet_asso" source=$plugin.config label="" required="required" cols="50" rows="4" maxlength=300}
         </dl>
 {*
     </fieldset>
diff --git a/templates/index.tpl b/templates/index.tpl
index 4f48de1..4aff8bf 100644
--- a/templates/index.tpl
+++ b/templates/index.tpl
@@ -52,11 +52,13 @@
         <h2>Choisir le taux de réduction</h2>
         <fieldset>
             {foreach from=$plugin_config->reduction item="reduc"}
+            {if $reduc->valeur == 1}
             <span class="radio-btn">
                 <input type="radio" id="{$reduc->taux}"
                        name="taux_reduction" value="{$reduc->taux}" />
                  <label for="{$reduc->taux}">{$reduc->taux}{if $reduc->remarque != ""} - {$reduc->remarque}{/if}</label>
             </span>
+            {/if}
             {/foreach}
         </fieldset>
     </div>
@@ -92,11 +94,13 @@
                         </td>
                         <td>
                         {foreach from=$plugin_config->reduction item="reduc"}
+                        {if $reduc->valeur == 1}
                         <span class="radio-btn">
                             <input type="radio" id="taux_{$reduc->taux}_{$activite.idTarif}"
                                    name="taux_reduction_{$activite.idTarif}" value="{$reduc->taux}" disabled />
                             <label for="taux_{$reduc->taux}_{$activite.idTarif}">{$reduc->taux}{if $reduc->remarque != ""} - {$reduc->remarque}{/if}</label>
                         </span>
+                        {/if}
                         {/foreach}
                         </td>
                         <td>{if $activite.descActivite != ""}{$activite.descActivite} ; {/if}{$activite.descTarif}</td>
diff --git a/uninstall.php b/uninstall.php
index 22bc6d1..5f8bdeb 100644
--- a/uninstall.php
+++ b/uninstall.php
@@ -6,10 +6,15 @@ use Garradin\Entities\Files\File;
 
 // signature par défaut
 $default_signature_file = \Garradin\Files\Files::get('skel/plugin/recusfiscaux/default_signature.png');
-$default_signature_file->delete();
+if (null !== $default_signature_file) {
+    $default_signature_file->delete();
+}
 
 // signature réelle
 $signature = $plugin->getConfig('signature');
 if (null !== $signature) {
-    \Garradin\Files\Files::get($signature)->delete();
+    $sig_file = \Garradin\Files\Files::get($signature);
+    if (null !== $sig_file) {
+        $sig_file->delete();
+    }
 }
diff --git a/www/admin/config.php b/www/admin/config.php
index 76b2739..ebd1137 100644
--- a/www/admin/config.php
+++ b/www/admin/config.php
@@ -50,7 +50,10 @@ if (f('save') && $form->check('recusfiscaux_config'))
             // supprimer la signature précédente, si besoin
             if (null !== $plugin->getConfig('signature'))
             {
-                \Garradin\Files\Files::get($plugin->getConfig('signature'))->delete();
+                $sig_file = \Garradin\Files\Files::get($plugin->getConfig('signature'));
+                if (null !== $sig_file) {
+                    $sig_file->delete();
+                }
             }
             // puis installer la nouvelle
             $plugin->setConfig('signature', $_SESSION['sig_file'][0]->path);
diff --git a/www/admin/style.css b/www/admin/style.css
index 3d95bfb..735c4a3 100644
--- a/www/admin/style.css
+++ b/www/admin/style.css
@@ -26,8 +26,9 @@ h3.personne {
 }
 #signature
 {
+    padding : 1em 0.5em 0 0.5em;
     max-width: 300px;
-    max-height 150px;
+    max-height: 150px;
 }
 dl.config
 {