I got no takers since my original post on Friday so I thought I'd try again. Hardware...Shuttle SN42G (small form factor) I actually have 2 of them...one has Windows XP and I can sync to Palm Desktop easily on Windows. But on Linux I can only do it on serial (ttyS0) tried linking to /dev/ttyUSB* (* from 0 to 15) /var/log/messages records... May 16 17:22:14 lin-workstation kernel: hub.c: new USB device 00:02.1-3, assigned address 4 May 16 17:22:14 lin-workstation kernel: usb.c: USB device 4 (vend/prod 0xc88/0x21) is not claimed by any active driver. May 16 17:22:17 lin-workstation /etc/hotplug/usb.agent: ... no modules for USB product c88/21/100 May 16 17:22:20 lin-workstation kernel: usb.c: USB disconnect on device 00:02.1-3 address 4 May 16 17:22:20 lin-workstation devlabel: devlabel service started/restarted - How do I figure out which ttyUSBx I should link to /dev/pilot? - How do I fix problem with no modules for USB product? I had their previous model Kyocera 6035 (serial not USB) and it worked out of the box. Now...when I start the sync process and cat /proc/bus/usb/devices... T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 6 Spd=12 MxCh= 0 D: Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0c88 ProdID=0021 Rev= 1.00 C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr= 2mA I: If#= 0 Alt= 0 #EPs= 4 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none) E: Ad=01(O) Atr=02(Bulk) MxPS= 8 Ivl=0ms E: Ad=82(I) Atr=03(Int.) MxPS= 8 Ivl=3ms E: Ad=03(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=84(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms so it appears to me that linking to USB0 is correct (i.e.- ln -s /dev/ttyUSB0 /dev/pilot) Any help here? Craig