floppy disk controller reported an error

I cannot get my A drive to work.  The error message that keeps coming up says: 

 

"The floppy disk controller reported an error that is not recognized by the floppy disk driver." 

 

I have a Sony digital camera and use floppy disks to view my pics...and I've checked inside the tower and everything seems plugged in where it belongs.  My computer acknowledges that I have an A and when I have the drive tested it says it's ok.  I have also tried disks without pics and the message is the same. 

 

Anyone smart enough to tell a mediocre computer user how to fix it?  In advance, thanks so much :)