zirron

hi, i know is kinda old game i have but i try to install yesterday on my pc running win xp sp2, i have both starcraft and starcraft brood war disc install, but when i try to run the single player game i have the problem to play the starcarft mission but i doing fine with the starcraft brood war disc, can anyone know what causing it?thanks. p/s: both disc i have is original.