Is there something wrong with my sg3?

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http://androidforums.com – I have to restart the phone several times a day cause it it seems to get stuck. The blue load line always stops at the left hand corner and won't work until I press restart. I'm not too tech savvy and this is only my second smartphone after my esteem(third overall) I have a weak signal most of the time, but I don't think it explains this issue, or does it? Any help would be much apreciated. The esteem forum was always very helpful. Hope this forum is just as good. I'm in California btw, if that helps. Thanks (General)