for those kind of problems
"install atleast one language pack"
eto gawin nyo, create nyo notepad tapos ilagay nyo ito:
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Electronic Arts\Electronic Arts\Red Alert 3]
"Language"="english"
after saving, rename nyo ung notepad to "ra3.reg"
tapos click nyo na...ok na ang RA3 nyo