How to save files on a jumpdrive?

I have been able to save all types of files on my Lexar 258mb Jumpdrive until recently. Every time I try to save a file it returns a message "unable to create file". I still have over 150mb of available space. I can open files on the drive and save them, but I cannot add any new file. Regardless whether it is a .doc file or .mpeg or other media. I have scanned for virus and found nothing. Any Suggestions??
Ken, March 2008


done
See if there are any hidden files taking space.

Richard, May 2008
link Click here to see other fixes for Lexar.