Hi and welcome to Daniweb,
Have a look at your Devise Manager and see if there are any yellow exclamation marks on any listing, if so right click on them and click update driver.
To access the “Devise Manager” Go “Start” “Run” type “devmgmt.msc” without the “ “ then press “OK”
I know its a new hard drive but it still could be faulty. Right click on your drive in MY Computer, Click properties, click tools, click Checknow, put a check in both boxes and click start. Reboot your machine and allow it to check your drive, it could take over an hour.
If you are still having problems check your event viewer for problems.
http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/snap_event_viewer.mspx?mfr=true
Post back if you need more assistance, Good luck.