Is this affecting your system at all? If it is, i found a post on Microsoft's support forum that asked the same thing.
You might want to try this.
Tell me if this work and if its affecting your system at all.
The Graphics Device Interface (GDI) subsystem on the computer is responsible for rendering information on the screen. GDI accepts requests for the display of information from several applications or services. When you scroll through a Web page by using a mouse, a keyboard or a touchpad, and the Use smooth scrolling option is enabled, requests are made to redraw with every line that changes. This behavior may cause high CPU use. Therefore, if you use a mouse, a keyboard, or a touchpad to scroll through a Web page while you play a video DVD, an audio DVD, or an audio CD, you may experience video or audio distortion.
To work around this issue, disable the Use smooth scrolling option in Internet Explorer. To do this, follow these steps:
- On the Tools menu in Internet Explorer, click Internet Options, and then click the Advanced tab.
- Click to clear the Use smooth scrolling check box.
Thanks for reading.