HTC Desire :: Can't Connect To PC

I have checked the USB debugging (to on, presumably).Downloaded HTC Sync on PC as the PC is not recognising the phone at all. It simply says when trying to open in My Computer as "PLease insert disc into drive E." I've set the Default Connection Device to all options; HTC sync, disc drive (not bothering with internet sharing) - neither work. However the charge only setting does work.The USB lead supplied doesnt look like a car charging type. How can you tell? The HTC Sync screen on the PC doesnt even register that the phone is connected.I have no interest in syncing with Google contacts or calendar, however I would like to be able to transfer calender info and contacts to the PC, and transfer from the PC, music and applications to the phone.