Hope someone can help. Since yesterday my phone has been running hotter than normal. Meaning it's physically warmer on the battery cover. Also my battery dies in about 4 hours.

I've restarted it many times, but it hasn't helped. There is no sluggishness, everything is running as normal except Gmail cannot send anything for some reason, it just gets stuck

The only thing I've updated in the last 48 hours is gTasks from the Market.

Any ideas? Does it have to go back???

 

Yea... nothing is running in the background.
I have a good understanding of the phone and Android in general. Used Astro to have a look at processes/etc and do not see anything out of the ordinary.

I'll try the factory reset today. If it doesn't work I guess it goes back. Thankfully it's under my 30 days.