I upgraded from 1.5 Cupcake to latest firmware 1.6 Donut. I noticed that battery life has decreased to half. In Sparepart's Battery History, Other Usage and Partial wake usage are normal but in Network Usage there is a item named "0" (Zero) which always is 100%. Even it cant be opened else it would force close the application (process com.android.settings). How to rectify this program or else stop it? One more small thing to ask. I cant find "Enter" key in Android keyboard.