The USB Drive was partitioned and formatted with my desktop running Vista and it writes and reads files perfectly on the desktop but the Drive does not appear in "my Computer" when connected to my laptop(running XP)so I cannot access the files and use it to transfer photos, etc.
If all else fails I can suggest the following when I had a problem with an XP PC that suddenly failed to see an external HD. Obviously no problem with the type of format. I was not convinced it would work, but it did. Shut down your laptop. Unplug from the mains and as it is a Laptop remove the battery. Remove any other equipment connected to USB and other ports including a printer etc. Leave over night. Reconnect everything and reboot. Hope this works, I believe I read somewhere in the past that USB ports can sometimes throw a wobbly and stop working.
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