Heading bug does not work

QUESTION:

I have tried several times to get the heading bug on the HSI to work in the B200 FSX. All other systems and hot spots appear to be working. when I start my sim and click to open the efis, that works, however after clicking on the hdg sync and course sync buttons the heading bug does not move. I have tried it with and without the AP. No change. 

ANSWER:

Have you tried using the mouse wheel to operate the knob?