I've had my new Samsung Galaxy Note 4 for two days now and have noticed intermittant problems with the touch screen. I've even added more touch screen sensitivity in the settings area and it has NOT helped at all. Sometimes I can tap on the screen repeatedly and find the phone not respond, then all of a sudden it responds. As I keep using the touch screen...suddenly it stops responding again. It's extremely frustrating especially when it's a brand new phone. I have now found several other reports of this on the internet, but have not found a fix. Suggestions (besides reset to factory settings and install each app one by one and test the phone)? Since it's an intermittant problem, it's hard to tell if any particular app is the sole contributing factor to this. Based on my experience and that of others...this appears to be a fairly common "bug" that we consumers are experiencing. Help!?