If you have a mouse with an oversensitive wheel mouse button like mine, it will be constantly switching to virtual scrolling mode whenever the mouse wheel is used for scrolling.
You will know this mode has been activated because the mouse cursor changes to the image shown below:
The only way I found to disable this annoying behaviour was to download the Microsoft Mouse and Keyboard Center from here: https://support.microsoft.com/en-us/top ... 737a36a3b2
Using this utility I was able to disable the wheel button which then removed this annoying behaviour.
Note: This still retains the beneficial behaviour of scrolling the screen using the mouse wheel as it only removes the behaviour of using the mouse wheel as a button input.
Cheers Jussi