The screen saver does not start after you install a wireless pointing device

Workaround:

Method 1: Turn off the PCMService.exe program

1. Open System Configuration. To do this in Microsoft Windows XP, click Start, click Run, type msconfig, and then click OK.
   
   To open System Configuration in Windows Vista, click Start
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   , type System Configuration in the Start Search box, and then click System Configuration in the Programs list.
   
   
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   If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.
2. On the Startup tab, click to clear the PCMService startup item check box.
3. Click Apply, and then click Close.
4. When you are prompted to restart the computer, click Restart.

Method 2: Remove the PowerDVD software

1. Open Add or Remove Programs. To do this in Windows XP, click Start, click Run, type appwiz.cpl, and then click OK.
   
   To open Add or Remove Programs in Windows Vista, click Start
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   , type Add or Remove Programs in the Start Search box, and then click Add or Remove Programs in the Programs list.
   
   
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   If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.
2. In the list of currently installed programs, click PowerDVD.
3. Click the Change/Remove button, and then follow the steps that appear on the screen to remove the program.
   

Resolution:

To resolve this behavior, plug in a wireless receiver, and then visit the following Microsoft Windows Update Web site to check for updates: http://windowsupdate.microsoft.com/

Install the update that appears as Optional Hardware Update and has the following title:

Microsoft HID Non-User Input Data Filter

:Thanks for Microsoft link: