I have been using my Ativa 8GB flash drive for about a year. Suddenly, I am unable to save anything to it - keep getting the message that it is Write Protected. I'm able to access my existing files just fine, but if I modify them and try to save - again I get the Write-Protected message.

There is not a switch anywhere on the flash drive that I can find. I also cannot find any options to write-protect or to remove write-protection when I right click on the drive. I have no idea how this change to my device came about. Fortunately I can copy my 3GB of files to my hard drive - so I haven't lost them - but I'd like to salvage the device if I can.