i am having problems with my mouse,the pointer is moving freely the buttons work perfectly but the wheel will only move the pages up or down really slowly and its very jerky in doing so.i have been into the mouse section of the control panel and tried adjusting the page speed etc but although the page scrolls over quicker it still seems very slow and jerky not smooth and fluid like it was.any ideas?thanks

Try reinstalling the manufacturer's driver for your mouse.