PcTel doesn't make modems, they make chipsets. If your modem is a Krypton model PS560PCI-F0 (instead of ps560pci-fo) with a PcTel HSP688 chipset, then you need to look for drivers matching it instead of the model number. Our database contains several drivers for the Pctel 688 chipset. Or try this one:
http://members.driverguide.com/drive...driverid=88974