C++: Infinite loop with a simple menu selection

Question

The script I am working on is over a page long, so I am going to link it (one simple file):
http://pastebin.com/7BVHmQGp

I apologize for that. My problem is I get in

Answer 1

Try cin.clear, I believe you are constantly reading your initial input character.

    cin >> selection;
    cin.clear(); 

Answer 2

I think you should be ignoring the newline character instead of a space

I tried with the following and it works on VS2010

    cin.ignore(1, '\n');
    getline(cin, input);

Answer 3

This page should explain all you need to know.