Danneffel,
I just loaded up my Sansa Clip and go the same error message that you recieved. I tried all of the things listed in this thread as well but then decided to just look at the Sansa Clip as any other hard drive and found the answer.
If you farmat the drive using the disk management function you will be able to use the Sansa Clip again. I just completed the quick format which took no time and was able to start reloading with songs. The downside is of course that you lose all of the song on the player, the good news, you don’t have to get a new one.
Hope this works for you as well as it did for me.
