does anybody know how to use the unit graph if youre using windows vista?
because when you do any error comes up saying that the system can not go fulscreen.
Unfortunately, Windows Vista no longer supports the old 16-bit DOS subsystem.
But, you aren't totally dead in the water. Take a look at DOSBox, which is a very nice x86 emulator for 16-bit applications. (It was specifically designed for gaming, but it will work for your program also.)
The only other recourse is to use virtual machine software and install a copy of DOS on a VM.
Hope this helps.