Hmm, thanks - any recommendations? I messed around some more last night and and while I can't say for certain that it's a KC issue, I press alt-1 and it sends 1 instead. All the macros etc are exactly the same as for non-modified, and I even went through my keybinds and removed any that included alt (aside from the hotbars which are the reason I'm trying to use this!) and still no change