closes #995

public/src/forum/category.js

@@ -138,7 +138,7 @@ define(['composer', 'forum/pagination'], function(composer, pagination) {
 	}
 
 	Category.loadMoreTopics = function(cid) {
-		if (loadingMoreTopics) {
+		if (loadingMoreTopics || !$('#topics-container').length) {
 			return;
 		}
 

src/socket.io/categories.js

@@ -20,7 +20,7 @@ SocketCategories.loadMore = function(socket, data, callback) {
 	user.getSettings(socket.uid, function(err, settings) {
 
 		var start = parseInt(data.after, 10),
-		end = start + settings.topicsPerPage - 1;
+			end = start + settings.topicsPerPage - 1;
 
 		categories.getCategoryTopics(data.cid, start, end, socket.uid, callback);
 	});