ive had this phone for 5 days, after switching from an iphone. its seems great but i found a trick which was Turning on USB Debugging mode after i found it was behaving quite laggy today. But since doing this the phone when turned completely off and turned back on again doesnt boot up as quick as when i first got it. It goes to a htc logo. then loads another htc logo, does the jingle, then says preparing the sd card, a limited services message comes up and then the phone loads up why is this!!??