Help implementing a menu

I am working on a numerology program for a friend of mine. I am trying to implement a simple menu to this program, but it seems to skip the read() function whenever I try the menu. If I don't use a menu, everything's fine. I can't figure out what's wrong.

Code:

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/* numer.h */

/* Preprosessor Directives */
#include<stdio.h>
#ifndef NUMER_H
#define NUMER_H

/* Function Declarations */
int convert(char name[], int n);
void read(char str[], int n);
int crunch(int num);

#endif

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Code:

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/* numer.c*/
/* Preprocessor Directives*/
#include "numer.h"

/* Function Definitions */


/* This function takes a C style string and converts the ascii values of
  the letters to what order they are in the english alphabet.  Then this
  function adds the numbers together and returns that sum.             
*/
int convert(char name[], int n)
{
        int i, d, sum = 0;

        for(i = 0; i<n; i++)
        {
                if(name[i] <= 90 && name[i] >= 65)
                {       
                        d = name[i] - 64;
                        sum += d;
                }
                if(name[i] <= 122 && name[i] >= 97)
                {
                        d = name[i] - 96;
                        sum += d;
                }
        }
        return sum;
}


/* This function takes a C style string and assigns it the name the user
  specifies
*/
void read(char str[], int n)
{
        char ch;
        int i = 0;

        while ((ch = getchar()) != '\n')
                if (i < n)
                        str[i++] = ch;

        str[i] = '\0';
        return;
}


/* This function takes a number and adds the individual digits together
  to obtain a single digit.  If, when all digits are added together,
  the sum is not a single digit, it calls the function again with the
  new value.  After several recursive calls, it will compute the digit,
  then return it.
*/
int crunch(int num)
{
        int sum = 0;
        while(num != 0)
        {
                sum += num % 10;
                num /= 10;
        }
        if(sum >= 10)
                return crunch(sum);
        return sum;
}

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Code:

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/* numer_driver.c */
/* Preprocessor Directives*/
#include "numer.c"

/* Main Function */
int main() {
        /* Variable Declarations */
        char name[50];
        int j;

        for(;;) {
                /* Menu */
                printf("1. Enter your name\n");
                printf("2. Quit\n\n");
                printf("Your choice: ");
                scanf("%d", &j);

                switch (j) {

                  case 1:

                        /* Code to enter your name */
                        printf("Enter your name: ");
                        read(name, 50);

                        /* This prints the single digit number your name equals */
                        printf("\nYour number is %d\n\n", crunch(convert(name, 50)));

                        break;
                       
                  case 2:

                        return 0;
                       
                  default:

                        printf("%d is not one of the choices\n\n", j);
                        break;
                }
        }
}

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