Flickering!!!!!!!

[SteveCRM]

Okay I've gotten a character to bounce around a console window...but now how do I make it stop flickering??? This for example:

#include <iostream.h>
#include <windows.h>
#include <conio.h>
int dummy;

void pause(unsigned long amount);
int main()
{    
    float Yspeed = 1;
    float Xspeed = 1;
    float x = 10;
    float y = 10;
    
        cout<<"o Mover: By Steve Mack"<<endl<<"Use the keypad to move (5 to exit)"<<endl;
        pause(2000);
    while(x!=1000)
    {
        int i;
        for(i=1;i<=y+10;i++)
        {
            cout<<endl;
        }
        for(i=1;i<=x;i++)
        {
            cout<<" ";
        }
        cout<<"o"<<endl;
        for(i=1;i<=25-y;i++)
        {
            cout<<endl;
        }
        x=x+Xspeed;
        y=y+Yspeed;
        if(x>=79 || x<=1)
        {
            Xspeed=Xspeed*-1;
        }
        if(y>=25 || y<=2)
        {
            Yspeed=Yspeed*-1;
        }
        pause(400);
        cout<<endl<<endl<<endl<<endl<<endl<<endl<<endl;
    }
    cin>>dummy;
    return 0;
}

void pause(unsigned long amount)
{  //creates a delay with the duration of amount.
  unsigned long t = GetTickCount();
  while((GetTickCount() - t) < amount);
} 

feel free to play with the pauses(by denniswrenn), I want it to go pretty fast but without the flickering.