Windows XP PRO / 1.8GHZ PIII using this case/mobo: http://www.jetway.com.tw/evisn/oem/miniQ450.htm Essentially, the machine freezes for a 1/2 second - constantly. Happens while watching movies / playing games, etc.. Happens on a new install - no spyware, no adware. All known updates have been applied. Tried several different hard drives with no luck. Any ideas?