When looking for answers please follow these simple steps.
#1 : Read the red stickys First.
New PR problems are rare so most answers can be found here.
Example the last red sticky is:
Help Guide for Lag / Stuttering caused by memory ( have you read this?)
#2. Use the search feature on PRs wed site or GOOGLE IT!. Often the quickest way to find what your looking for when you have an error message.
#3. You have spent some time trying to help yourself, but your ready to ask for help:
Please remember to include your basic PC info in your post :
Operating system = XP, Vista etc.
systems specks = cpu/speed, ram installed, video card/video ram on card
network setup = cable, 4 port 10/100/1000 d- link gamers lounge/ wired conection.
And a brief history before and after problem started.
Please describe when your CTD or problem hits and
what you have already tried.
The more info you can give the better you chance of getting a quick answer back.
You don't have to write a book,
but your basic PC info is needed to help you.
Good luck