Sorted:

Too many IBOutlets causing crash-Collection of common programming errors

When IBOutlet components of NSWindow are initialized?-Collection of common programming errors

What is non-thread-safety for?-Collection of common programming errors

problem about implicit-Collection of common programming errors

Using Super in an Objective C Category?-Collection of common programming errors

C# Program Optimisation-Collection of common programming errors

problem about asymptotic-complexity-Collection of common programming errors

Problem assigning a SqlParameter-Collection of common programming errors

how to find and fix the cause of the crash-Collection of common programming errors

Programming to an interface. How to decide where its needed?-Collection of common programming errors