That is very strange, however let's try to fix the problem. Would you try to go to the manufacturer's website of the computer, look for Support/Drivers and enter your model number. After that look for a download(s) and download a "Chipset" or "USB" driver package, and install that. Reboot and see if the issue persists. If it does, it may be a problem with the computer itself and you should contact the manufacturer if it is still under warranty.
You may want to try taking the slide off, checking that no parts have broken or BB's have gotten wedged somewhere inside it. While apart, clean and oil it.
You will have to repair the whole thing, not knowing without opening it up, and you would need to check resistances, voltages, etc. The easiest way is to find a repair place. Then get a warranty(will save you lots in the long run). And which ipod is it? If it is the nano 6th gen, go here: http://www.apple.com/support/ipod/servic...
All I have to say is that for a "screen" you would need the whole digitizer, which is around $115. It would be better to buy a new 8gb Nexus 7 and take the digitizer from it...hope this helps. (We answer you'r questions, then who answers ours?)