Can't see the device after replacing disk

Can't see the device after replacing disk

My ipod video stopped working. It would either say the battery was low or it would just display the support web address. I decided to replace the disk and since I was replacing it I upgraded from 30gb to 60gb. I purchased a new battery, headphone/hold switch, front, back and disk. Now it just clicks. I can't see it in iTunes or windows "My Computer". Nothing shows up on the display. Any ideas?

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