PowerAmp "jumping" with screen off?

[funkylogik]

Just noticed this lastnight so it hasnt always been like this on this phone but when playing mp3 with PA, as soon as the screen times out or is turned off, the track starts bouncing/stuttering.
I havent flashed anything recently that could have triggered it.
Ive cleared cache and dalvik.
Cheers :beer:

 

[vosg]

Try Settings, Misc, Tweaks and activate Screen Lock, maybe it helps.