Support No Sim Card Problem

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http://androidforums.com – Hey, guys So I got myself HTC One X about a month ago and I started noticing this problem from last week. In short words, I lose phone service and my phone gives me "no sim card" sign occasionally every day or even twice a day. The phone goes back to normal after a reboot or two. I have not taken it to store yet, since I doubt it is a hardware problem - never dropped it once and simple reboot solves the problem. Any ideas what causes that? Thank you (General)