Default USB Debugging Error

Just wondering if anyone has come across this error when reading their logcat files?
I have flashed several different .ftf files and roms - all with the same result
Disabling USB debugging obviously stops the errors, strange thing is that USB debugging/media copying works anyway even with this error constantly showing

Anyone else seen these messages?

Code:
Select Code
E/UsbDebuggingManager( 1665): Communication error: 
E/UsbDebuggingManager( 1665): java.io.IOException: Connection refused
E/UsbDebuggingManager( 1665): 	at android.net.LocalSocketImpl.connectLocal(Native Method)
E/UsbDebuggingManager( 1665): 	at android.net.LocalSocketImpl.connect(LocalSocketImpl.java:287)
E/UsbDebuggingManager( 1665): 	at android.net.LocalSocket.connect(LocalSocket.java:130)
E/UsbDebuggingManager( 1665): 	at com.android.server.usb.UsbDebuggingManager.listenToSocket(UsbDebuggingManager.java:75)
E/UsbDebuggingManager( 1665): 	at com.android.server.usb.UsbDebuggingManager.run(UsbDebuggingManager.java:111)
E/UsbDebuggingManager( 1665): 	at java.lang.Thread.run(Thread.java:841)