Support [MetroPCS] Which Android(?)-service control Apps?

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http://androidforums.com – Can someone please advise which Service controlls the shorycuts for each screen? I was in the services (Settings/Applications/"ALL" I went throgh "suspects crashing"--Gmail, Play Store constantly crashing Post tecent baseband flash Clearimg cache (play storeGmail, etc. *Might* be on to something(?)--upon reboot, first time ever I have seen "Tutorial" pop-up for Multi-scteen. Anyway somethin I disabled lost all app shortcuts. Which service controls please.. Thank You :confused: (General)