Hi.

You also have to Enable POP only for mail that arrives from now on in your gmail settings.

There have been times where this still doesn't sync correctly.

Try setting your notifications to once every 5 minutes.

Send yourself a mesage. If it still doesn't work, keep going to your gmail settings and saving your options again.

Once it syncs, you won't ever have to do this anymore.

I think it's some weird bug.

You might consider deleting all of your messages, save your gmail settings, then bring them all back from the trash.

Just an idea though.