diff --git a/www/calendar/inner.js b/www/calendar/inner.js
index fbc910bdb..80b5606f2 100644
--- a/www/calendar/inner.js
+++ b/www/calendar/inner.js
@@ -513,7 +513,8 @@ define([
                         options: types, // Entries displayed in the menu
                         isSelect: true,
                         initialValue: '.ics',
-                        common: common
+                        common: common,
+                        buttonCls: 'btn',
                     };
                     var $select = UIElements.createDropdown(dropdownConfig);
                     UI.prompt(Messages.exportPrompt,
diff --git a/www/common/media-tag.js b/www/common/media-tag.js
index a99a74f8f..133e64805 100644
--- a/www/common/media-tag.js
+++ b/www/common/media-tag.js
@@ -82,7 +82,11 @@ var factory = function () {
                     plainText.innerText = e.srcElement.result;
                     cb(void 0, plainText);
                 });
-                reader.readAsText(content);
+                try {
+                    reader.readAsText(content);
+                } catch (err) {
+                    cb(err);
+                }
             },
             image: function (metadata, url, content, cfg, cb) {
                 var img = document.createElement('img');
diff --git a/www/convert/app-convert.less b/www/convert/app-convert.less
index 79585cad8..18132bc0c 100644
--- a/www/convert/app-convert.less
+++ b/www/convert/app-convert.less
@@ -16,4 +16,8 @@
     iframe[name="frameEditor"] {
         display: none;
     }
+    input[type="file"] {
+        padding: 5px !important;
+        margin-bottom: 5px;
+    }
 }
diff --git a/www/convert/inner.js b/www/convert/inner.js
index 7075c4467..c8b2cdd71 100644
--- a/www/convert/inner.js
+++ b/www/convert/inner.js
@@ -325,8 +325,10 @@ define([
             type: 'file'
         });
         APP.$rightside.append([hint, picker]);
+        Messages.convert_unsupported = "UNSUPPORTED FILE TYPE :("; // XXX
 
         $(picker).on('change', function () {
+            APP.$rightside.find('button, div.notice').remove();
             var file = picker.files[0];
             var name = file && file.name;
             var reader = new FileReader();
@@ -345,6 +347,9 @@ define([
 
                         }).appendTo(APP.$rightside);
                     });
+                } else {
+                    var notice = h('div.notice', Messages.convert_unsupported);
+                    APP.$rightside.append(notice);
                 }
             };
             if (ext === 'bin') {