DaniWeb IT Discussion Community - plz help i have prblm in Borlandc++ graphic.h

hi all ;;
i'm so glade to join u ,,
i want ti ask about my problem in using borlandc++ 3.11 under windows vista home edition ,

i wrote the following program ..& i runs perfect on windows xp(on my desktop computer)
but while trying it on my laptop dell inispiron 1520 i get the following runtime error-
note .. i have checked graphics library in option>>linker>>librariers>>graphic librariers.
(
borland c++ for dos
this system does not support fullscreen mode.choose 'close' to terminate the application.
close ignore

when i press ignore it comes again to me ,, when i press again - borland c++ hang

)

can anyone tell me how to fix this problem??
thanks in advance....
that include the following code:

#include <stdlib.h>
#include <stdio.h>
#include<iostream.h>
#include<graphics.h>
#include<conio.h>
class point
{
int x;
int y;
static int pointnum;

public:
static int getpointnum()
{
return pointnum;
}

int getx()
{
return x;
}

int gety()
{
return y;
}

void setx(int n)
{
x=n;
}
void sety(int m)
{
y=m;
}

point()
{
x=y=0;
pointnum++;
cout<<"def. con. point";
}

point(int n,int m)
{
x=n;
y=m;
pointnum++;
cout<<"con. point";
}

~point()
{
pointnum--;
cout<<"dest. point";
}

};

class rect
{
int color;
point ul;
point lr;
static int rectnum;

public:
static int getrectnum()
{
return rectnum;
}

rect():ul(),lr()
{
color=0;
rectnum++;
}

rect(int x1,int y1,int x2,int y2,int c):ul(x1,y1),lr(x2,y2)
{
color=c;
rectnum++;
}

~rect()
{
rectnum--;
}

void draw()
{
setcolor(color);
rectangle(ul.getx(),ul.gety(),lr.getx(),lr.gety());

}
};

int rect::rectnum=0;
int point::pointnum=0;
void main()
{
/* request auto detection */
int gdriver =DETECT, gmode, errorcode;

/* initialize graphics and local variables */
initgraph(&gdriver, &gmode, "c:\\bcpp\\bgi");

/* read result of initialization */
errorcode = graphresult();
if (errorcode != grOk) /* an error occurred */
{
printf("Graphics error: %s\n", grapherrormsg(errorcode));
printf("Press any key to halt:");
getch();
exit(1); /* terminate with an error code */
}

rect r(200,300,400,500,5);
r.draw();
getch();
closegraph();
}