System restart when playing DOTA

Install the latest driver for EMX-NF7050HD-PRO (http://www.emaxxtech.com/products.php?id=2).

Note:
If the latest driver did not work, download war3.reg from http://ftp.blizzard.com/pub/war3/other/ and save it to your Windows Desktop. Once the file has been downloaded, double-click on it to import the registry info. This file will set Warcraft III to mute sound, run with the basic settings for video and set the refresh rate for the monitor to 60Hz. Once the game has started, you may select the options menu and adjust the video and sound settings as desired.