USB devices have moved in FC2?

Hi all, I have a USB modem that in all previous releases was attached to /dev/input/ttyACM0 now FC2 (no changes or updates - as it ships with 4 CDs) keeps on giving: May 29 16:56:44 gw pppd[10694]: Failed to open /dev/input/ttyACM0: No such device or address I get [root@gw root]# lsusb Bus 002 Device 001: ID 0000:0000 Bus 001 Device 007: ID 03f0:1004 Hewlett-Packard DeskJet 970c/970cse Bus 001 Device 006: ID 0bf1:0001 Intracom S.A. Bus 001 Device 001: ID 0000:0000 [root@gw root]# dmesg|grep usb usbcore: registered new driver usbfs usbcore: registered new driver hub usbcore: registered new driver hiddev usbcore: registered new driver hid drivers/usb/input/hid-core.c: v2.0:USB HID core driver usb 1-1: new full speed USB device using address 2 usb 1-2: new full speed USB device using address 3 drivers/usb/class/usblp.c: usblp0: USB Bidirectional printer dev 2 if 0 alt 1 proto 2 vid 0x03F0 pid 0x1004 usbcore: registered new driver usblp drivers/usb/class/usblp.c: v0.13: USB Printer Device Class driver usb 1-2: USB disconnect, address 3 usb 1-1: USB disconnect, address 2 drivers/usb/class/usblp.c: usblp0: removed usb 1-2: new full speed USB device using address 4 drivers/usb/class/usblp.c: usblp0: USB Bidirectional printer dev 4 if 0 alt 1 proto 2 vid 0x03F0 pid 0x1004 usb 1-1: new full speed USB device using address 5 usb 1-2: USB disconnect, address 4 drivers/usb/class/usblp.c: usblp0: removed usb 1-1: USB disconnect, address 5 usb 1-2: new full speed USB device using address 6 usb 1-1: new full speed USB device using address 7 drivers/usb/class/usblp.c: usblp0: USB Bidirectional printer dev 7 if 0 alt 1 proto 2 vid 0x03F0 pid 0x1004 is the device different now? thank you all theophanis