BBP : Still having some crackles when network or display activity

Hi all, I've been fighting with this problem for a long… I searched the forum, found this thread (http://www.forumclaessonedwards.com/forum/index.php/topic,935.15.html) but nothing I've not already done.

I'm running BBP with a Roland Octa Capture USB audio interface. The Roland's drivers latency is to the maximum (maximum buffer size), stability to the maximum. On BBP I use the low CPU mode, on Windows I gave cpu priority to the background processes. All Window's energy saving settings are OFF

I still have crackles on some video display activity : displaying a window, a dialog box, produces few (one) to many crackles. There is no fancy apps installed on the machine, no automatic updates, CPU HP seems to be ok.

We use BBP to process external audio input (PC -> mixing desk -> PC -> FM emitter & MP3 stream) – This allows us to process anything going to the mixing desk, coming from the automation playlist or a simple CD desk.

It seems that I even get crackles on some hard drive/network activity…

I've been investigating the most I can and I don't know what to do else…