Major Problem Need Help!!!

[Kelcom]

CPU:
laptop
Intel Core 2 Duo P7350
Windows 7 64 bit
Nvidia Geforce GT 130M

The game used to run fine.
It's been several years since I last played SH4 so the other day I decided to fire it up. I launched it and found that the entire game is running on a really high resolution or something so only the upper left corner of the game screen is visible. The whole game has somehow scooched down a bunch and is zoomed in on the corner. I can navigate the main menu, (barely) but only the "back" button is visible when I try and launch missions. and I can't change the resolution in game because the "accept" button lies somewhere below my screen.
I've tried everything I can think of to try and fix this problem. Nothing seems to work. Manually changing the resolution through properties, or changing it in the files. I've searched the web many times but no ones else seems to have this problem. I thought that maybe there was some mod that I had stuck in there that messed things up, but I couldn't reinstall the game because I have long since lost the disks. So I bought it again on steam, downloaded it, and launched it. and to my utter horror the exact same problem was occurring.
The ubisoft logo and the movie at the beginning both run correctly.
But the game itself is a disaster
I'm completely lost.

Thank you for your help.