Installed XP Home (hey , I got a legit copy, unopened for $40) and all went well for a day. Got OS, Office, Zonealarm, AVG, installed and user data and files loaded. Did all the updates from MS for hardware and security. Then when I started transfering bulk data or installing more applications (Digital Camera sofware, Perfect disk, etc) each attempted install comes back with an error. After the error I start getting "Delayed Write Error" messages. "Something is wrong with your network or hardware." It keeps up until I do a chkdsk /f and then it's ok until I try another install. Clean install of XP on a freshly formatted disk I'm working in an account with Admin privileges, disk is only 25% full. Reinstalled network devices and drivers (twice). Have write back cache disabled in windows. Tried the MS support bug fixes (all three). Checked all bios settings. HELP! Out of ideas short of a reformat and reinstall.