[feisty] usb disk mounting quirky

Mounting a USB disk on Feisty is successful. However, when you try to unmount it (either by right click the icon on the desktop or the icon in Thunar's sidebar), you get an error stating that you were not the one who mounted the usb disk and hence are unable to unmount it.

On second try (I removed and then inserted the thumb drive to the usb port), the icon appeared but it was non automatically mounted. After mounting it was by right clicking on the icon and then clicking "Mount Volume", I was able to right click and select "Unmount Volume" successfully.

Unfortunately, now when you remove the USB disk, the icon does not disappear from the desktop. I image a reboot would resolve the issue but this is obviously not intended behavior.

Reviewing dmesg , it is reported that the usb disk was removed:

[11099.217957] usb 1-1: new full speed USB device using uhci_hcd and address 7
[11099.385370] usb 1-1: configuration #1 chosen from 1 choice
[11099.388830] scsi3 : SCSI emulation for USB Mass Storage devices
[11099.389491] usb-storage: device found at 7
[11099.389507] usb-storage: waiting for device to settle before scanning
[11104.387964] usb-storage: device scan complete
[11104.391992] scsi 3:0:0:0: Direct-Access Staples Relay 0.1 PQ: 0 ANSI: 2
[11104.401942] SCSI device sda: 2001888 512-byte hdwr sectors (1025 MB)
[11104.405067] sda: Write Protect is off
[11104.405097] sda: Mode Sense: 03 00 00 00
[11104.405110] sda: assuming drive cache: write through
[11104.417796] SCSI device sda: 2001888 512-byte hdwr sectors (1025 MB)
[11104.420861] sda: Write Protect is off
[11104.420889] sda: Mode Sense: 03 00 00 00
[11104.420903] sda: assuming drive cache: write through
[11104.420925] sda: sda1
[11104.427645] sd 3:0:0:0: Attached scsi removable disk sda
[11104.427908] sd 3:0:0:0: Attached scsi generic sg0 type 0
[11135.070769] FAT: utf8 is not a recommended IO charset for FAT filesystems, filesystem will be case sensitive!
[11142.321537] usb 1-1: USB disconnect, address 7

What I've noticed is that every time I plug it in and then unplug it, the address increments by 1.