Acer 22'' Problems with Macbook

I currently have this monitor.

http://www.amazon.com/Acer-AL2223Wd-.../dp/B000KEGCC6

The monitor itself works fine. I plugged it into my PC laptop, everything was great. However, I used a VGA input.


I bought the DVI input for my macbook and when I plug it in, the monitor still shows everything, but I have these terrible red pixels everywhere. Well not everywhere, only when a picture is pulled up on screen, or my background is shown, then there are red pixels everywhere.

I called ACER support and they told me to find a driver. somewhere. Didn't really specify where. Can someone help me with this?