Problems with rockbox on ipod nano

[couves]

Problems with the last release of ipod nano rockbox(r14238).
My ipod is giving errors like
Data abort at 00048544 or
Data abort at 01F00B40
and crashes when I am trying to play Mp3. and when i finally can play any mp3 it makes strange noises.

In video playback Its appears "artifacts" no the video and the sound makes strange noises too and most of the times the video player crashes.

In rockbox old build this never happen.

Keep the good work with this project  
Couves

PS: Sorry my bad English, I don't know if this is the best place to put this problem and if you need more info please ask! I want to contribute to this project  

[Febs]

This is a known issue:  http://www.rockbox.org/tracker/task/7510

Until it is resolved, you can use the archived daily build from July 26.  It would also be useful if you could post a comment on the bug report page with the requested information.