Thanks, MRU.
Also saw some reviews on amazon that the spigen ultra crystal(my preferred brand) screen protector causes the capacitive buttons to be less sensitive. Didn't see those reviews on the same protector for the gs4. Any other brand suggestions for screen protectors besides zagg(don't like them)?
That was prior to the new software update. There was a software bug for some people where the capacitive buttons were not responding. Any screen protector then exacerbated it. However it is now fixed in the latest update.
I use the spigen ultra crystal on mine right now. No problems at all.