1.open RUN
2.Search Regedit (in run)
3.Select HKEY_CURRENT_USER
4.Select Software > Blizzard Entertainment > Warcraft III >Video
5.Change Res height & Res width ....Click it And Change Hexdecimal to Decimal
6.Change The Current Value To higher Value
7.Do this to > Model Detail and anything
8.Exit the program and Play Warcraft III