I havve a Palm 515...it will not work with a USB and cradle...I have two cradle, same result. XP Home, HotSync on USB Local, Software 4.0.1...I checked website and did everything...It make a noise trying to sync with desktop, but then cannot....I not the normal USB plug-in noise. It works with serial port, but times out!!! Any suggestions why or "how-to" fix would be greatly appreciated!!!