The G68 also has a serial port. So you could use a standard RS232 Serial Null Modem cable and the RS232 serial port on your laptop (if it has one) to configure the unit using MConfig. If using the laptops serial port no drivers need be installed and the entire paragraph about the drivers is irrelevant.

Regards,

Oppo UDP-203, Sonos, Nvidia Streamer, Fire TV 4K, Trinnov Altitude32 into Dan D'Agostino Momentum into Wilson Alexx, Paradigm Sub 1, Monitor Audio In Wall surrounds, JVC NX9