Yes I am also still getting audio pops and crackles in my Win 7 64bit partition even with Scope 5.1 XITE latest release. In Win 7 32bit Scope 5.1 works perfectly well, no pops or dropouts at all , and the most annoying thing is that when I enable and use the on board soundcard's audio driver in 64bit partition (and in the 32bit partition for that matter), I can use Cubase 5 without any pops or crackling.
Since SC first Scope 64bit beta I have been trying to figure out why this popping is the case and what could be causing it but so far no joy. I have tried disabling everything I could think of and tried virtually every driver version I could find for the M6500, not to mention trying out the various tweaks that are advised, but still no go. For the record my system is a Dell Precision M6500 with i7 820 processor, 4GB x PC1333, 2 x 250GB 7200RPM HD, nvidia Quadro FX 3800M video card. It also has TI chipset for firewire and cardbus and I have also tried disabling these which I hoped would stop any interference with the expresscard interface but it doesnt make any difference.
Recently I was able to get hold of the USB 3.0 I/O card for the M6500 to swap out and try instead of the older USB 2 I/O board and see if that made any difference which it didnt. I think I will have to call it quits on trying to use Scope 64bit on this laptop and just use it in 32bit for now until I either build another machine or prehaps look at the ADK laptops. Damn shame though as I was kind of hoping the official release of Scope 5.1 and updated drivers would fix that issue. But it hasnt, although it seems other users seem to be running Scope 5.1 on their XITE-1 in Win7 64bit without audio crackles or popping. I guess it just doesnt like the M6500. Oh well, such is the price of being on the cutting edge sometimes
