Vista stalling and slowing to a crawl!!

[ZedPowered]

Recently upgraded my mobo and around a month later Vista started stalling when I did anything, even loading bbc.co.uk would cause the pc to freeze for a minute or so.

Reformatted and put Vista Ultimate 64 bit Feb 2009 on it, and its still doing it on a fresh install! system is as in sig, no overclock atm.

Help!!?

 

[braveheart]

did you update MS Update for Vista after you format hard drive? if not then you need to into MS Update for fix the patch first then once it done then reboot and then it will be ok also use Firefox 3 instead of IE7 that give you fast browser also clean up the temp file that usual (use Disk CleanUp in My Computer)