I posted this to the RISC OS Open Forum [Bugs] a couple of days ago without any response so far, so apologies in advance for double-posting. I upgraded to the latest HardDisc4 version of USB2recently, with good results until I tried to open a 128MB Teradata memory stick, described under WindowsXP 'Properties' as a JMTek USBDrive 2.0 USB Device, formatted to FAT. It would mount (and dismount) but clicking on the drive icon produced an internal error at &FC2C18CC and killed the Filer, forcing a reboot. This memory stick works ok under WinXP and MacOS 10.4, and used to work under the old RISC OS USB2 module. 3 successive retries all had the same result (can't confirm the abort address was the same as I only noted the last failure). Has anyone else had a similar problem? Cheers George -- --- To alter your preferences or leave the group, visit //www.freelists.org/list/iyonix-support Other info via //www.freelists.org/webpage/iyonix-support