Hi all. I recently picked up a 75th RR. Very happy with it, but it needs a software update. I need to do a full install and I'm having trouble creating the bootable USB. Has anyone had success recently doing this with Unetbootin on a MAC? The process runs (very quickly) but nothing appears on the USB. Everything I have tried so far has not worked. Any advice? Are there any other programs/apps I can try? Thanks.