I've always two bugs after the installation of the two zips ( AC!D and Walkman engine ) :
1) Theme manager force close ( on settings -> display -> theme )
2) Audio really good when playing without headset, but after 5-6 seconds it became low
Also I had a camera FC, but I fixed this by deleting on the zip of Walkman these files :
system -> etc -> permissions -> com.sonyericsson.cameraextension.xml and com.sonymobile.cameracommon.xml
system -> framework -> com.sonyericsson.cameraextension_impl.jar and com.sonymobile.cameracommon_impl.jar
So guys can you help me for fix those two bugs? Thanks!!