IM pretty sure the Layla is midi, but the biggers problem Ive found has been that blasted Cakewalk, for some reason CW has always had these problems, I spent days trying to get CW to understand my audio card on my old computer, its the defaults when you load the software, its not smart enough like some other software to load defaults that result in playback ready. Its like getting and 8 bus console with 23 inputs, but 1/2 of the controls not being labeled or in some arbitrary location. I blew that PC last year, and bought a used "Boeing Surplus Dell" and it worked fine with the built in sound chip, but add on a secondary card and CW gets all screwed up. None of my other software has that problem. Ive logic Audio Platinum, 3 Versions of Sound Forge,and even ProTools free works, but the cakewalk wants me to jump through hoops for simple midi. Also check the Windows based volume controls which are independent of the card and software, alot of times the midi isnt configured there either.
Good Luck!
Dennis