I've been having some problems uploading my drum kits into Ultrabeat. Every time that I try to import a drum kit into Ultrabeat, I am not hearing any sound from my samples at all. For example when I try to import my kick drum selection, it keeps telling me to locate so and so kick drums. Once I click cancel to both of these, the import setting does come up, but I cannot hear anything, no sound at all. Does anyone know what's going on and how I can fix this?