Vivid re-downloading ics over and over again?

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http://forum.xda-developers.com – I love my vivid but every once in awhile it'll freeze or get sluggish and you need to reset it. So I do, but everytime I reset it, it goes to a screen saying android is updating like its downloading ics all over again? What's happening? Sent from my HTC Vivid using XDA Premium (HowTos)