|When you connect your device, do you hear a connection sound from Windows?|
Does an Icon show up in My Computer?
Right click on My Computer, then Properties, in the tabs, look for Device Manager. Once opened, plug in your device and see if anything in there changes or is added. Also look if there's an issue with a driver.
AMD Phenom II X2 550 @ 3.11
Patriot PC2-6400 4Gig
Seagate 160Gig SATA
Seagate 320Gig SATA