I've been having some trouble with Sonar X2 not recognising some plugins. It turns out that Cakewalk code needs Windows '8.3 file name' generation to be left switched on (the default) and I am wondering if Scan turn it off when they optimise Windows for audio in a DAW PC. I say this because I have no other idea as to how it came to be switched off on my 3XS - I didn't even know what it was!
Anyway, here is a thread on the Sonar forum that will be of assistance to anyone with a Scan PC that has had odd issues with Sonar:
http://forum.cakewalk.com/tm.aspx?m=2681013
John