I have some problems with clicks and crackles when playing or recording a sound in Audition (even using Mplayer).
I can see that Alienhand have the same problem as I and the only thing we have in common is Asus P5W64 and Scope cards.
I have done most things - My old computer didn't have any problems.
1) New install of Windows XP SP2 (several times with different settings)
2) Disabled almost all devices on the motherboard
3) No IRQ sharing
4) Tried 3.1c and 4.0 drivers
5) Tried Double Dawg
6) With and without RAID (bought an Areca 1231 incl 1GB cache)
7) Did every single optimization trick found on this forum

But nothing works!!!!!
But it seems that ASIO are without problems, but unfortunately Audition 1.5 doesn't support ASIO (and I hate newer versions of Audition). And I would prefer that wave (MediaPlayer, Quicktime, Flash etc) was possible on my system.
Have anyone been able to get the Asus P5W64 working?
Kind reagrds
Martin