I believe for the Expert you will need to install drivers. Did you receive drivers with your cutter?
If not, you should be able to download them here: GCC Download - Laser Engraving, Cutting, Marking, Vinyl Cutters and UV Printers
If not, you should be able to download them here: GCC Download - Laser Engraving, Cutting, Marking, Vinyl Cutters and UV Printers