When im searching for some file, sometimes i use the lateral scroll bar. After 3 or 4 times scrolling, the Prime 4 blocks. The music still playing but its impossible tho search a new song. If i insist on the scroll bar, 10 minutes or less after, the Prime starts to wake up and its possible to continue the work. It hapensseveral times on gigs… Theres anybody with the same problem? Thanks!!!