Off Topic question

[WindHeavenNights]

I'm taking a C class, and we use a POS statement to position and display 
things on the screen. This works fine at the school, however, when I try to 
get it to work at home, it comes up weird like:
[10;5f---[Time System]---[12;5f[1] Enter a Minute-Time.[13;5f[2] Quit.[14;5f
Enter a choice [1-2]: [2J---[Time System]---[12;5f[1] Enter a Minute-Ti
me.[13;5f[2] Quit.[14;5fEnter a choice [1-2]:


I know this works because this is a program that I wrote in class. So I think 
it has something to do with my ansi.sys file.
I'm running windows ME, and the ones at school we use windows XP.
Code:

#include <stdio.h>
#include <math.h>
#include <stdlib.h>
#include <string.h>

#define CLS         printf("\x1B[2J")
#define POS(u,v)    printf("\x1B[%d;%df", u, v)
#define LOCATE      printf("\x1B[s")
#define RESTORE     printf("\x1B[u")
#define EOL         printf("\x1B[K")
#define PAUSE       getch()
#define HOUR        60

void menu();
void choice();
void compute();
void quit();


void main ()
{
    menu();
    choice();
    quit();

return;
}

void menu()
{


    POS(10, 5);
    printf("---[Time System]---");
    POS(12, 5);
    printf("[1] Enter a Minute-Time.");
    POS(13, 5);
    printf("[2] Quit.");
    POS(14, 5);
    printf("Enter a choice [1-2]: ");


return;
}




void choice()
{
    int run = 1, choice;


    while (run == 1)
    {
        CLS;
        menu();
        scanf("%d", &choice);
        switch (choice)
        {
            default:
                POS(16, 5);
                printf("That is an incorrect choice.");
                POS(17, 5);
                printf("[ Enter ]");
                PAUSE;
                break;
            case 1:
                compute();
                break;
            case 2:
                quit();
                run = 0;
                break;
        }
    }
return;
}

void compute()
{
    int minutes;
    float time, fminute;


    CLS;
    POS(10, 10);
    printf("Enter minutes from 1 and 10,000 |>");
    scanf("%d", &minutes);
    if(minutes < 1 || minutes > 10,000)
    {
        CLS;
        POS(15, 15);
        printf("Enter a value between 1 and 10,000");
        PAUSE;
        return;
    }

    time = minutes / HOUR;
    fminute = minutes % HOUR;
    POS(15, 10);
    printf("[ Minutes ] %d", minutes);
    POS(17, 10);
    printf("[  Hours  ] %2.2f", time);
    POS(19, 10);
    printf("[ Minutes ] %2.2f", fminute);
    PAUSE;
    POS(20, 10);
    printf("[  Enter  ]");

    return;
}

void quit()
{
    CLS;
    POS(20, 20);
    printf("Quitting.....have a NICE DAY.");
    PAUSE;
    exit(0);
}