Program that does nothing

[suzee_q00]

I have what I hope will be a simple question but then again I hope it's not simple so I don't have to feel like an idiot.
I built this program and it used to work but I added on to it and it stopped working. Does absolutely nothing. I started deleting lines of code and it still doesn't work. Any help would be greatly appreciated.

      int option; /*. . .and other variable declarations were here*/
 
 
      do{
         printf("1  -  Add a new car to inventory.\n");
      printf("2  -  Remove a sold car from inventory.\n");
      printf("3  -  Display info on car. (inv # needed)\n");
      printf("4  -  Display cars of specific year.\n");
      printf("5  -  Display cars within a price range.\n");
      printf("6  -  Display cars of specified color.\n");
      printf("7  -  Display all Cars in inventory.\n");
      printf("8  -  Quit. (exit inventory tracking system)\n");
      scanf("%d", &option);
      scanf("%c", &enter_key);
 
      switch (option)
      {
             case 1: /*add a car to inventory*/
                  printf("Enter the 4 digit year (ex. 1975):\n\t");
                  scanf("%[^\n]s", &new_car.year);
                  scanf("%c", &enter_key);
                  printf("Enter the car's make (ex. Ford, Chevy, Honda . . .:\n\t");
                  scanf("%[^\n]s", &new_car.make);
                  scanf("%c", &enter_key);
                  printf("Enter the car's model:\n\t");
                  scanf("%[^\n]s", &new_car.model);
                  scanf("%c", &enter_key);
 
                  /* . . .bunch of other printfs and scanfs, you get the picture*/
 

[suzee_q00]

As it turns out the problem above was simple and yes I am an idiot. I had a # include in one of my files that was in lower case but my file name was in upper case. Once I changed the include the program runs. Still not error free but at least I can run it and track down the errors.

Not to worry, y'al haven't heard the last of me.

Thanks so much for being here