Turbo C++ is like 20 years old, and so are it's graphic drivers (EGAVGA.BGI, anyone?). These drivers don't know anything about Windows, they are designed to run in plain DOS environment.
There is a chance the graphics driver on your card does not play well with emulated VGA card. Try running this program in virtual machine (VirtualBox, VmWare, VirtualPC), or in DosBox.