having the same problem. Did you fix it? If so, how please? Every time i open Monkey it shows the yellow caution flag against drivers. I've used the update selection option several times - same result. If i go into the drivers file i just get an uninstall option. I've also done a complete re-install of all Line 6 components. I'm running High Sierra which is moving to 64bit and my mac app report says line 6 items not compatible, even though line 6 says they are. Any idea where my problem is please?