Seems many computer builders havent configured Windows XP to work at its best with Dual Core CPU's and CPU's with HT Technology, you can read the story here http://www.theinquirer.net/default.aspx?article=38508 and you can go here http://forum.notebookreview.com/showthread.php?t=60416 and read more plus see what you need to download from Microsoft and also do some registry tweaks to get XP to utilize the Dual cores and the Hper threading to its fullist...both laptops and desktops werent sent out optimized to get all the performance they can from these CPU's......I have just done both my laptop and desktop and will post the findings later

here is the link to the update from microsoft http://www.microsoft.com/downloads/d...displaylang=en you will also have to do some work in registry..just follow the directions that you will see in the second link above......you will need to download and install the microsoft update above first..I went and copied the directions and posted them below