Mouse scroll wheel assignment no longer works.
Microsoft wireless 4000, Windows 7 (64 bit).
In Mouse Properties, I have assigned the scroll wheel on the mouse to page forward in my web browser (firefox) when I press down on the wheel. This worked fine up until recently. But lately, when I press down on the scroll wheel, a scroll symbol appears on the screen and the web page scrolls up or down with any vertical mouse movement, and does not page forward, as it did previously.
I made sure the settings for the wheel shows "forward (browser)" and applied this setting. However, the wheel continues to fail to utilize the "page forward" function and keeps bringing up the scroll symbol on the screen when I press down on the scroll wheel. Anyone know what's going on?