Sorted:

iPhone: AVAudioPlayer/NSURL memory management-Collection of common programming errors

problem about directive-Collection of common programming errors

What happens to global variables declared in a DLL?-Collection of common programming errors

How to create generic id type properties?-Collection of common programming errors

Debugging JUnit Internals-Collection of common programming errors

PyGTK TextView problems-Collection of common programming errors

Supporting .shp & .mdb files-Collection of common programming errors

How silverlight works-Collection of common programming errors

asp.net,visual-studio-2010,c#-4.0Related issues-Collection of common programming errors

Understanding a large Java program-Collection of common programming errors