I had the issue of Gmail not syncing on my Dx2. For that matter, nothing related to Google would sync! I could do it manually, but it would not do it automatically. I also didn't have any check boxes next to the individual items in the gmail settings! What I found is that the Motorola Power widget controls ALL sync features! Almost like a main power switch for sync. Make sure you have the sync feature on this widget turned on! As soon as I turned it on, everything worked like it's supposed to. I am not saying that this is the answer to everyone's issue, but it worked for me! I was on the phone with VZW for about an hour trying to figure this out and we were about to do a factory reset and Josh suggested that we check this..... IT WORKED!