Mouse Wheel Scrolling is Offset

[dmwalker]

I have recently bought the A320/A321 for FSX and I have a problem with scrolling with the mouse wheel.

 

For example, I should be able to control the speed setting knob by hovering over it and using the mouse wheel but, in fact, I have to hover over the brake fan switch in order for the mouse wheel to control the speed setting.

 

This is at a 1.50 zoom and the active position varies with higher zooms and disappears with lower zooms. There is a similar offset for heading, altitude and vertical speed.

 

I should mention that I have the same problem with other aircraft but, instead of scrolling with the mouse wheel, I can continuously press the mouse button which does work by hovering over the appropriate knob. With the A320, I don't have that option. Is there a way to remove this offset?

 

Thanks.

 

Dugald Walker.