Yer it's a replacement phone from t-mobile, the phone was reset before I started it up so it was clean I must admit the thought had crossed my mind an app may be causing the problem and may have been brought across when I transferred all the data to the new phone, also the old phone keept on crashing and sending error logs also when it restarted it would cycle through the restart prosses around 10 times before it would finally boot up and would constantly freeze along with the back button and recent app button not working. The only thing the new phone is not doing is the recent app button not functioning and yes I have checked all the settings for buttons and all is correct. I will try safe mode and see what happens.
Many thanks for your replys