diff --git a/4chan_x.user.js b/4chan_x.user.js
index d5d42026e..0d9164500 100644
--- a/4chan_x.user.js
+++ b/4chan_x.user.js
@@ -2537,10 +2537,10 @@
     var url;
     switch (g.BOARD) {
       case 'g':
+      case 'sci':
         url = "http://archive.installgentoo.net/cgi-board.pl/" + g.BOARD + "/thread/" + g.THREAD_ID;
         break;
       case 'lit':
-      case 'sci':
       case 'tv':
         url = "http://archive.gentoomen.org/cgi-board.pl/" + g.BOARD + "/thread/" + g.THREAD_ID;
         break;
@@ -2655,7 +2655,7 @@
       a = thumb.parentNode;
       $.bind(a, 'click', imgExpand.cb.toggle);
       if (imgExpand.on && root.className !== 'inline') {
-        return imgExpand.toggle(a);
+        return imgExpand.expand(a.firstChild);
       }
     },
     cb: {
@@ -2667,21 +2667,22 @@
         return imgExpand.toggle(this);
       },
       all: function(e) {
-        var thumb, thumbs, _i, _j, _len, _len2, _results, _results2;
-        thumbs = $$('img[md5]');
+        var thumb, _i, _j, _len, _len2, _ref, _ref2, _results, _results2;
         imgExpand.on = this.checked;
         if (imgExpand.on) {
+          _ref = $$('img[md5]:not([hidden])');
           _results = [];
-          for (_i = 0, _len = thumbs.length; _i < _len; _i++) {
-            thumb = thumbs[_i];
-            _results.push(!thumb.hidden ? imgExpand.expand(thumb) : void 0);
+          for (_i = 0, _len = _ref.length; _i < _len; _i++) {
+            thumb = _ref[_i];
+            _results.push(imgExpand.expand(thumb));
           }
           return _results;
         } else {
+          _ref2 = $$('img[md5][hidden]');
           _results2 = [];
-          for (_j = 0, _len2 = thumbs.length; _j < _len2; _j++) {
-            thumb = thumbs[_j];
-            _results2.push(thumb.hidden ? imgExpand.contract(thumb) : void 0);
+          for (_j = 0, _len2 = _ref2.length; _j < _len2; _j++) {
+            thumb = _ref2[_j];
+            _results2.push(imgExpand.contract(thumb));
           }
           return _results2;
         }
@@ -2719,7 +2720,6 @@
     },
     expand: function(thumb) {
       var a, filesize, img, max, _, _ref;
-      thumb.hidden = true;
       a = thumb.parentNode;
       img = $.el('img', {
         src: a.href
@@ -2729,13 +2729,26 @@
         _ref = filesize.textContent.match(/(\d+)x/), _ = _ref[0], max = _ref[1];
         img.style.maxWidth = "-moz-calc(" + max + "px)";
       }
-      $.bind(img, 'error', function(e) {
-        thumb = this.previousSibling;
-        imgExpand.contract(thumb);
-        return imgExpand.expand(thumb);
-      });
+      $.bind(img, 'error', imgExpand.error);
+      thumb.hidden = true;
       return $.add(a, img);
     },
+    error: function(e) {
+      var req, thumb;
+      thumb = this.previousSibling;
+      imgExpand.contract(thumb);
+      req = $.ajax(this.src, null, 'head');
+      return req.onreadystatechange = function(e) {
+        if (this.status !== 404) {
+          return setTimeout(imgExpand.retry, 10000, thumb);
+        }
+      };
+    },
+    retry: function(thumb) {
+      if (!thumb.hidden) {
+        return imgExpand.expand(thumb);
+      }
+    },
     dialog: function() {
       var controls, delform, imageType, option, select, _i, _len, _ref;
       controls = $.el('div', {
@@ -2760,7 +2773,7 @@
       return $.prepend(delform, controls);
     },
     resize: function(e) {
-      return imgExpand.style.innerHTML = "body.fitheight img[md5] + img { max-height: " + d.body.clientHeight + "px }";
+      return imgExpand.style.innerHTML = ".fitheight img[md5] + img {max-height:" + d.body.clientHeight + "px;}";
     }
   };
   firstRun = {
diff --git a/changelog b/changelog
index 9ddeeb680..f6a862e9a 100644
--- a/changelog
+++ b/changelog
@@ -2,6 +2,7 @@ master
 - mayhem
   initiate 4chan X earlier
   automatically reload expanded pictures on error
+  update /sci/ archive redirection
 
 2.20.1
 - mayhem
diff --git a/script.coffee b/script.coffee
index 9df150983..f3cdee65d 100644
--- a/script.coffee
+++ b/script.coffee
@@ -1915,9 +1915,9 @@ Favicon =
 
 redirect = ->
   switch g.BOARD
-    when 'g'
+    when 'g', 'sci'
       url = "http://archive.installgentoo.net/cgi-board.pl/#{g.BOARD}/thread/#{g.THREAD_ID}"
-    when 'lit', 'sci', 'tv'
+    when 'lit', 'tv'
       url = "http://archive.gentoomen.org/cgi-board.pl/#{g.BOARD}/thread/#{g.THREAD_ID}"
     when 'a', 'jp', 'm', 'tg'
       url = "http://archive.easymodo.net/#{g.BOARD}/thread/#{g.THREAD_ID}"
@@ -1973,23 +1973,20 @@ imgExpand =
     return unless thumb = $ 'img[md5]', root
     a = thumb.parentNode
     $.bind a, 'click', imgExpand.cb.toggle
-    if imgExpand.on and root.className isnt 'inline' then imgExpand.toggle a
+    if imgExpand.on and root.className isnt 'inline' then imgExpand.expand a.firstChild
   cb:
     toggle: (e) ->
       return if e.shiftKey or e.altKey or e.ctrlKey or e.button isnt 0
       e.preventDefault()
       imgExpand.toggle @
     all: (e) ->
-      thumbs = $$ 'img[md5]'
       imgExpand.on = @checked
       if imgExpand.on #expand
-        for thumb in thumbs
-          unless thumb.hidden #thumbnail hidden, image already expanded
-            imgExpand.expand thumb
+        for thumb in $$ 'img[md5]:not([hidden])'
+          imgExpand.expand thumb
       else #contract
-        for thumb in thumbs
-          if thumb.hidden #thumbnail hidden - unhide it
-            imgExpand.contract thumb
+        for thumb in $$ 'img[md5][hidden]'
+          imgExpand.contract thumb
     typeChange: (e) ->
       switch @value
         when 'full'
@@ -2014,7 +2011,6 @@ imgExpand =
     $.rm thumb.nextSibling
 
   expand: (thumb) ->
-    thumb.hidden = true
     a = thumb.parentNode
     img = $.el 'img',
       src: a.href
@@ -2022,12 +2018,19 @@ imgExpand =
       filesize = $ 'span.filesize', a.parentNode
       [_, max] = filesize.textContent.match /(\d+)x/
       img.style.maxWidth = "-moz-calc(#{max}px)"
-    $.bind img, 'error', (e) ->
-      thumb = @previousSibling
-      imgExpand.contract thumb
-      imgExpand.expand   thumb
+    $.bind img, 'error', imgExpand.error
+    thumb.hidden = true
     $.add a, img
 
+  error: (e) ->
+    thumb = @previousSibling
+    imgExpand.contract thumb
+    #navigator.online is not x-browser/os yet
+    req = $.ajax @src, null, 'head'
+    req.onreadystatechange = (e) -> setTimeout imgExpand.retry, 10000, thumb if @status isnt 404
+  retry: (thumb) ->
+    imgExpand.expand thumb unless thumb.hidden
+
   dialog: ->
     controls = $.el 'div',
       id: 'imgControls'
@@ -2049,7 +2052,7 @@ imgExpand =
     $.prepend delform, controls
 
   resize: (e) ->
-    imgExpand.style.innerHTML = "body.fitheight img[md5] + img { max-height: #{d.body.clientHeight}px }"
+    imgExpand.style.innerHTML = ".fitheight img[md5] + img {max-height:#{d.body.clientHeight}px;}"
 
 firstRun =
   init: ->