. FIxed bug # 81: Notifications never show up wen using POP3.

src/com/fsck/k9/MessagingController.java

@@ -504,7 +504,9 @@ s             * critical data as fast as possible, and then we'll fill in the de
                 Collections.reverse(unsyncedMessages);
 
                 FetchProfile fp = new FetchProfile();
+                if (remoteFolder.supportsFetchingFlags()) {
                     fp.add(FetchProfile.Item.FLAGS);
+                }
                 fp.add(FetchProfile.Item.ENVELOPE);
                 remoteFolder.fetch(unsyncedMessages.toArray(new Message[0]), fp,
                         new MessageRetrievalListener() {

src/com/fsck/k9/mail/Folder.java

@@ -96,6 +96,10 @@ public abstract class Folder {
 
     public abstract Flag[] getPermanentFlags() throws MessagingException;
 
+    public boolean supportsFetchingFlags() {
+        return true;
+    }//isFlagSupported
+
     @Override
     public String toString() {
         return getName();

src/com/fsck/k9/mail/store/Pop3Store.java

@@ -811,6 +811,11 @@ public class Pop3Store extends Store {
             }
         }
 
+        @Override
+        public boolean supportsFetchingFlags() {
+            return false;
+        }//isFlagSupported
+
         @Override
         public boolean equals(Object o) {
             if (o instanceof Pop3Folder) {
@@ -818,7 +823,8 @@ public class Pop3Store extends Store {
             }
             return super.equals(o);
         }
-    }
+                
+    }//Pop3Folder
 
     class Pop3Message extends MimeMessage {
         public Pop3Message(String uid, Pop3Folder folder) throws MessagingException {