My Vibrant was doing that all the time BEFORE I uninstalled "adv task master" as far as I could tell it didnt mater what your doing atm is the problem it dont like the Vibrant!
Since that day my second month of life with Vibrant has been crash free!
if you must "control stuff" grab "app swipe" and "start up auditor"
Unlike atm, sua will not allow you to kill stuff thats important! So that makes a big difference in the crashs!
And app swipe makes it easy to kill stuff you just ran...Tho it does lagg in scrolling...I thought it was just my phone but my friends cliqxt did the same lagg so i felt vindicated !