When you use a Microsoft wireless pointing device that uses Microsoft IntelliPoint software on a Windows Vista-based computer, you may notice that the screen saver of the computer does not work even though it is configured to run.

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This issue may occur if the PCM and DVDLauncher services are running in the background. The PCM service is used to start media programs faster. The DVDLauncher is a program that is used for DVD playback.

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To resolve this issue, plug in a wireless receiver, and then check for updates. To do this, visit the following Microsoft Windows Update Web site: Install the Optional Hardware Update that is named Microsoft HID Non-User Input Data Filter.

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To learn more about how to end a process in Windows Vista, follow the instructions in the "End a process" topic in Windows Vista Help and Support. To view the topic, follow these steps:

1.	Click Start , and then click Help and Support.
2.	In the Search Help box, type End a process, and then click Search Help.
3.	Click the appropriate topic.

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

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