Hi, just while playing DMC4. Works perfectly with any other game and in windows (that's what i believed).

I have now found the origin of this sound problem but let me explain you what I have discovered. It may help people who have the same issu.

Well, i had finally the same drivers that are linked in the first page (v7300a) so my drivers were up to date. But when Nagenaz told me to get the drivers directly from ASUS or from VIA website because it was more reliable, i had an idea. As you know the lastest VIA drivers aren't available on ASUS Support website. I decided to try to go back to the old drivers version from ASUS Support.

It worked. I launched DMC4 and the sound was f***ng right. Moreover, the intro of the game which was freezing for an unknown reason before has worked perfectly.
I performed a performance test in the game and what i saw was amazing. A f***ing huge huge boost in FPS (80fps on average against 40fps when i had no sound).

Well, by discovering that, i decided to perform an other test to see if what i believed was true.

Until now i had a small issu with the game Colin Mcrae Rally Dirt. The game was too much laggy in 1024*600 even with all settings low (especially in races with opponents like buggy race)

In 800*480, the game was "playable" but still a little bit laggy in races with opponents, but playable (still all settings low)
When i performed some test with those settings i discovered that my CPU was all the time at 100% and my GPU was used only at 70-80%. I was wondering why but didn't find anything and was thinking that Dirt was a game which required a f***ing good CPU.

After the boost that i saw in DMC4, i decided to see the result on Dirt.

800*480 with all settings low : CPU at 60-70% and GPU at 80% and game playable (no lag even with opponents)
1024*600 with all settings low : CPU at 70-80% and GPU at 100% and game playable (little little lag in games with opponent)

I hope you're understanding what i try to explain, it seems that for me the last VIA HD Audio drivers package (v7300a) was causing an anormal high usage of my CPU apart from the fact that it didn't word with DMC4.

That's why i advices you all to perform some test especially if you have an anormal CPU usage while playing some games.

The cause of this issu may be that i'm using windows XP, or maybe it is just an issu between RM-74 cpu and last VIA HD Audio package, i don't know but now it works perfectly for me.

So thanks to CAPCOM !! Without DMC4 i would have never found that !!

Thanks for reading and srry for bad english i'm a f***ing frenchy.

EDIT : And thanks to Nagenaz ;D