BORLAND BIG GRAPHICS NOT SUPPORTED PROBLEM

hey guys i got a promblem using borland c++ 5.02 in my laptop in the windows 7 operating system
i am just a begininner in the programming language ! i use borland 5.02 for coding .recently i got problem using borland .
whenever i use graphics.h header file and try to make a simple circle using some code (given below) i got error ie bgi graphic
not supported under windows .then from my sir advice i have to change the platform(target) to dos mode and make a tick on bgi.
which i did .then after running that code again i got a dos output but there is a messege "bgi Error: GRaphics not intialized(use 'initgraph')
which appears on screen (for 1 second) and goes away !from the following code it is seen that i have used initgraph but still it say . I am not able to run borland especially graphics part and dont want to use
turbo c ! Can you guys plz help out out to solve this problem !!



#include<stdio.h>
#include<conio.h>
#include<dos.h>
#include<graphics.h>
#include<iostream.h>
void main()
{
int gd,gm;
gd=DETECT;
initgraph(&gm,&gd,"..//bgi");
{
circle(170,170,48);
closegraph();
getch();
}
}