itunes

Since I rebuilt my pc I haven't attached my ipod, I decided to do it last night following on from some info in the itunes thread, to find my pc wants to sync with it and erase all the data :shocked:. Is there anyway to either stop it doing this, or back up my current songs?

For some reason today i terned on my pc and external sound car like normal no differant to any other day. But today Itunes has decided to forget where all my music is stored [external hard drive] and thanks to this my pc is going to be left on for the next day as it imports all 10,000 or so...