OK, so I am running on Windows XP and have just downloaded (admittedly older version, so it can run on my OS) BFD ECO. I have also downloaded the groove packs JM Essentials Vol 1 and 2.
The problem that I have on setting up is that some of my grooves do not seem to want to play. That is, I can play the BFD Eco Default drum kit and any preset marked 'Drum Track', however if I try and select others it's a bit hit and miss. e.g. 'Artist - RW - Pork Pie' seems to work. 'Artist - CL - Hoodie' doesn't. In fact, with Hoodie, when I load the preset it doesn't seem to load a kit at all, and when I try to load one, browsing through a couple of different options that appear to be available in the drop down, a bunch of red exclamation marks come across the screen on top of each piece of the drum kit.