I got a copy of Swat 4 with my Graphics card, and I've never actually been able to play it. Here is my problem:
Menus, cut scenes etc work fine. Now, in gameplay, if you are looking an in Internal wall, everything is fine:

Now, moving slightly left in the above, and I'm looking at an External wall:

It's as though it's rendering the external environment through/over the walls/internal environment.
I've installed the latest patch, and had a play about with all the settings (which I can think of), and it's the same each time.
Can anyone shed any light, or got any suggestions as to what may be causing this?
Cheers