Hi, I have Lenovo B570 and its a very nice laptop. But there is one minor issue I am facing. The touchpad has a vertical line on the right side. When you place your finger on it and move up or down, it acts as a page slider.... like it scrolls the page up/down. Earlier, it used to start automatically on computer startup but now it doesn't. And whenever I open, just open, the mouse properties window, it begins to function all of a sudden...The settings are also all fine and vertical scrolling is also check marked. How does this thing get solved?