This is frustrating! - If I boot my machine from the knoppix CD instead of the HD install and plug it in it doesn't lock the machine!

The CD is a later version, but still 3.3 like my HD install, so same kernal.....

I did get the dmesg stuff from both to compare, but it means little to me, just in case anyone else has the knowledge:-

Booted from knoppix live CD, plug it in:

hub.c: new USB device 00:10.2-1, assigned address 2
usb.c: USB device 2 (vend/prod 0x58f/0x9350) is not claimed by any active driver.
Initializing USB Mass Storage driver...
usb.c: registered new driver usb-storage
usb-uhci.c: interrupt, status 2, frame# 672
scsi2 : SCSI emulation for USB Mass Storage devices
usb_control/bulk_msg: timeout
usb-uhci.c: interrupt, status 2, frame# 1454
usb-uhci.c: interrupt, status 3, frame# 1185
WARNING: USB Mass Storage data integrity not assured
USB Mass Storage device found at 2
USB Mass Storage support registered.

Booted from my HD install, plug it in:

hub.c: new USB device 00:10.2-1, assigned address 2
usb-uhci.c: interrupt, status 2, frame# 1232
usb_control/bulk_msg: timeout
scsi1 : SCSI emulation for USB Mass Storage devices
usb_control/bulk_msg: timeout
usb-uhci.c: interrupt, status 2, frame# 969

then it locks.....

All I note is "scsi1 or 2: SCSI emulation for USB Mass Storage devices" and maybe it doesn't like interrupt status 3 ?

Doh!