I have XP pro SP3 on my laptop and it randomly locks up (cant move mouse or do anything) and i have looked at the event viewer and this error seems to be there when there a lockup

Event Type: Error
Event Source: RSVP
Event Category: None
Event ID: 12004
Date: 8/25/2008
Time: 8:38:58 PM
User: N/A
Computer: **********
Description:
Error (The system cannot find the file specified.) while reading the FirstCounter value under RSVP performance key (HKLM\\SYSTEM\CurrentControlSet\Services\RSVP\Performance) in registry.
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp . Any help would be greatly appreciated.