Sometimes the right scroll wheel on our Expert refuse to work. You can scroll for the evening but nothing will happen. Anyone else with the same? We need to reboot the system to solve this and sometimes it takes a couple of reboots. Is this some software failure or is it a hardware thing?
Note that sometimes if it is working and when you scroll it clockwise the numbers are counting down

instead of up. very strange. Thats why I think it is a software issue.