I installed a plug-and-play Samsung 19" digital monitor over the week-end (my Gateway EV 700 monitor faded to black and there was an audible ticking coming from the power source) and ever since my scroll wheel on my mouse does not work properly. With a IE browser page opened, for example, when I rotate the wheel by a click or two the page scrolls for several seconds, either direction. Did a monitor driver installation have any effect on the mouse driver? If not, wher should I look? I went to Control Panel and Device Manger, and there are no yellow exclamation marks for the mouse.