When you run W3, your screen goes black and says "unsupport"?
I guess you have LCD display/monitor, right? What's the resolution? Or better, give me excact name and type (or link) of your monitor so I can read something about it.
I remember I got something similar years ago on my old CRT monitor and it was caused by frequency.
W3 doesn't support 16:9 ratio (or does it with newest patch?), I'm not even sure about max supported resolution (newest patch supports high resolution but I don't know what's max).
Anyway, go to Start -> run -> regedit -> HKEY_CURRENT_USER\Software\Blizzard\W3\Video
On right side you can see some settings, set reswidth and resheight to some normal, non crazy resolution (1024x768, 1280x1024 etc).
Note: Bigger number write in reswidth!
Note 2: Make sure you type it in decimal numbers, not in hexadecimal!
Then tell me what number is in refreshrate? If you have there some crazy frequency, which isn't supported by your display, set it on 75.