I have to say, the VS-700 system and Sonar X1 was one of the toughest installs I've ever done (and I've done a lot).  There are lots of little "gotchas", multiple driver installs, obscure updates, and don't even get me started on the firmware updates.  I definitely sympathize.  I wish I could help, but it's been over a year since I did the install, so I'm pretty rusty on the ins and outs.  All I can say is I wish you luck, and don't give up.  Once it's all up and running, it's amazing and 100% worth the effort.   :)
 
 

Annnnd I see the forums are acting buggy.  Ah well...
 
 

Great you get it worked out. Computers are pig at times and can waste your time when they get cranky with you. Overall I've got to say I haven't seen any consistent issues with the USB side of the 700 gear though... that I can recall anyway.