no command/command sounds of own platoon possible

[sundance_1 0]

hi,

after several hours of playing ArmA i have often the following problem.

After different periots of time in missions i can't command my platoon any longer. No command sounds and no reaction from that guys.

I have sought the forum but.... and

i remember that i had a similar problem in ofp but i dont know

how it was fixed...

I installed the newest patch, driver for chipset, sound card (Audigy), GPU a.s.o., i´ve turned-off the sound hardware acceleration and EAX, reinstalled the entire game, but all with no positive result.

I hope anyone can give me a hint to solve this problem.

thanks...