Recently (before new update) I noticed that whenever I turned on my 4G, the EVO would noticeably slow down. Changing from home screens, opening the menu, contacts, etc would take longer than usual. Even when unlocking the phone and putting in my code it would lag like crazy. I turned on 4G today to see if there was any signal (nope there was not) and it continued to lag like before. I turned off 4G and eventually restarted the EVO. It is fine, but it sucks that I can't toggle 4G on because of this. What can be happening? Thank you.