Why am I getting multiple Gmail Notifications? Ever since the 2.2 update, I'm receiving multiple Gmail notifications without accessing the Gmail app and with the setting "Notify only once" active.

I've tried a factory reset, but it still does this.

Any thoughts? I do have my Gmail auto-popping another account, could this be it?
It sounds like maybe you added your GMail account to the regular Mail app.  So you are probably receiving notifications from both apps.

If you are only using the "GMail" app then find the "Mail" (not "GMail") app in your app drawer and run it and see if your mail is in there too.  If it is just delete the account from there and then you should only get notifications from GMail not Mail.