iTunes help!!

I tried to sync my iPad to iTunes last night but it wouldn't register. It made the 'bedeep' noise when I connected it to the computer but didn't come up under the devises bit. I tried a different wire, I tried restarting the pc, I tried resetting the iPad. Is there anything else I can try or will I have to take it back to the Apple shop??

I wondered if any of you have had the same problem