all inputs selected, echo on, midi keys selected as input in preferences, it works and then it just stops responding, and I know its not hardware because it works %100 fine in fruity loops......everything else is working in sonar, nothing wrong with audio anywhere else.........but why does it do this?how can I fix this?...is it only cause of last sonar update? or windows update?...........please somebody/anybody......help!!!!!!.........this is driving me CRAZY!!!!!

Hey- calm down- this is not that serious. What controller? Are you sure it works with FL now at the same time and it is not USB port that goes out? bad cable? You can unplug it and plug it back. No solution. Try another USB port. But I had to deal with it until I bought new controller. I had Novation. 

Thanx man, for help, yeah it definitely works with fruity loops, and it works sometimes, like if I start a new project, it works...but then after a while it stops.....unplugging it and plugging it back in works in fruity loops...every time...however it doesn't in sonar...ive changed usb ports....but...the thing is.....sonar tells me that it is plugged in and recognises the akai LPK is connected......it knows that the akai 25 is whats plugged in....maybe ill try another computer?