At home I am using WEP and my wifi constantly drops from wifi to 3G on and off. I never had this problem on my older iPhone before. But when I go to my friends house, or the Apple store where they use WPA, it connects great. I was just wondering if this is normal for the phone or should I get a replacement? I'm hesitant to get a replacement though because I don't seem to be having an issue with the lower left hand corner and reception. I've grip that thing as hard as possible for a few minutes and haven't lost a bar. Thoughts?