Most likely your floppy drive 'died'. You'll have to replace it.

>This sounds weird and I do not know when it started to happen, since I’m not a frequent floppy user.
>
>Once I read a floppy drive (open drive A:), it does never refreshes again any other floppy. It keep the data of the first floppy inserted and I can even run the programs in it even with no floppy inserted. I can create folders files etc. and even check its properties.
>
>The worst of all is that at shutdown, the PC still thinks there is a floppy inserted and NAV replies over and over stopping the shutdown process asking for the floppy to be removed.
>
>Any hints are welcomed.
>
>Thanks in advance
>
>
>Oscar Corte