Fix for Keyboard Lag on Dell XPS Laptop (WinXP)

I have really been loving this Dell XPS M1530 laptop. It's been great except for one very annoying thing. There has been a bad LAG problem with the inputs (both mouse and keyboard). I had searched futilely for a solution. Then, I did the old "give it some time and try again." After a few weeks of suffering the insufferable lag, I Googled again for a solution. Found it!

Get the details of the simple fix here:

XPS-M1730 SLOW KEYBOARD PCMSERVICE.EXE

As mentioned in the post, I used MSCONFIG (Start > Run > MSCONFIG) to remove PCMService.exe from startup. PCMService.exe is a Dell executive file that has something to do with some Dell Media or Dell MediaDirect something or some such. I don't recall ever using whatever it is the program does. I am not missing it at all. And the horrible LAG is gone! I don't miss it either.