hello. yes, I've a similar problem. there seems to be a very bad bug here. it took around 4 scans of the drum and real tracks folders before I stopped seeing N/A's. Seems to affect the drums on my system more than anything. First update that this has occurred this many times in. whole batches of drum loops generally from the one drummer have N/A on them. oh well, time to hire real musos. sigh. j.