My 80gb ipod classic isnt recognized!?!

I connected my ipod classic to my computer and it says it needed to install drivers for it. But when it did, it didnt download all of them and now, it wont even pop up when i connect my ipod. When its connected neither the computer, itunes or my ipod recognize that they are connected. Its not a problem with the usb cord because it worked fine with my home pc. the usb ports are all on as well.I also tried putting it into disk use and that also did work as well, Itunes didnt recognize it and it just said "ok to disconnect" even when plugged into my computer. Is there a way to find and install drivers manually? If anyone could help it would be great. If theres no way to find drivers is there any other way that I could fix this problem.