Hi Charles and folks, Tks for your advice. > It might be simpler to run dmesg after inserting the device, # dmesg | grep usb usbcore: registered new driver usbfs usbcore: registered new driver hub usbcore: registered new driver libusual usbcore: registered new driver hiddev usbcore: registered new driver usbhid drivers/usb/input/hid-core.c: v2.6:USB HID core driver SELinux: initialized (dev usbfs, type usbfs), uses genfs_contexts [<ffffffff802a8d8c>] (usb_hcd_irq+0x0/0x50) usb usb1: configuration #1 chosen from 1 choice usb usb2: configuration #1 chosen from 1 choice usb 2-2: new low speed USB device using ohci_hcd and address 2 usb 2-2: configuration #1 chosen from 1 choice input: USB HID v1.11 Mouse [Microsoft Microsoft USB Wireless Mouse] on usb-0000:00:0b.0-2 usb 1-8: new high speed USB device using ehci_hcd and address 3 usb 1-8: device not accepting address 3, error -110 usb 1-8: new high speed USB device using ehci_hcd and address 4 usb 1-8: device not accepting address 4, error -110 usb 1-8: new high speed USB device using ehci_hcd and address 5 usb 1-8: device not accepting address 5, error -110 usb 1-8: new high speed USB device using ehci_hcd and address 6 usb 1-8: device not accepting address 6, error -110 usb 1-8: new high speed USB device using ehci_hcd and address 7 usb 1-8: device not accepting address 7, error -110 usb 1-8: new high speed USB device using ehci_hcd and address 8 usb 1-8: device not accepting address 8, error -110 usb 1-8: new high speed USB device using ehci_hcd and address 9 usb 1-8: device not accepting address 9, error -110 usb 1-8: new high speed USB device using ehci_hcd and address 10 usb 1-8: device not accepting address 10, error -110 usb 1-8: new high speed USB device using ehci_hcd and address 11 usb 1-8: device not accepting address 11, error -110 usb 1-8: new high speed USB device using ehci_hcd and address 12 usb 1-8: device not accepting address 12, error -110 usb 1-8: new high speed USB device using ehci_hcd and address 13 usb 1-8: device not accepting address 13, error -110 usb 1-5: new high speed USB device using ehci_hcd and address 15 usb 1-5: device not accepting address 15, error -110 usb 1-5: new high speed USB device using ehci_hcd and address 16 usb 1-5: device not accepting address 16, error -110 usb 1-5: new high speed USB device using ehci_hcd and address 17 usb 1-5: device not accepting address 17, error -110 usb 1-5: new high speed USB device using ehci_hcd and address 18 usb 1-5: device not accepting address 18, error -110 There are errors. # fdisk -l Disk /dev/sda: 80.0 GB, 80026361856 bytes 255 heads, 63 sectors/track, 9729 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 * 1 13 104391 83 Linux /dev/sda2 14 1734 13823932+ 83 Linux /dev/sda3 1735 3008 10233405 83 Linux /dev/sda4 3009 9729 53986432+ 5 Extended /dev/sda5 3009 3262 2040223+ 82 Linux swap / Solaris USB drive not found B.R. SL
