Very out of date I know, but I re-discovered my old decks and wanted to have a play. I've been trying to set some beat grids up but for some reason I can't zoom in/out of my waveform using the below buttons. Just want to know if I'm going crazy or not as I can't find any info about why this could be happening - most other questions about this reference the fact that the +/- can't even be found, not that clicking on them doesn't work. Any ideas appreciated!