commandos 3 no sound

[skuzz]

when i first run commandos 3 i get the music but when i load campaign and play game i get no sounds.i have latest nvidia drivers and directx,my specs are

athlon xp 1700
512 ram
64mb nvidia video card
win xp home
thanks

[sick]

How much size takes the installation folder of C3?
Maybe you didn't do a full install.

[skuzz]

the install folder of c3 is 1.8 gb