Battery draining + call waiting + media player automatic sound up problems

Sep 6, 2011
I just installed MIUI
I got some really nice stuff but some problems too

1.Call recorder not working
2.Battery drain too much (if i watch a video for 5 min battery down by 2%) waiting not working with network error
4.Media player volume get up down frequently
5.some images cant be zoom
6.while scrolling down contact pop up alphabate not changing